by Harper J.P, Knight C.V
Year of Publication 1982

by CHURCHILL, S. A, HARPER, J. P, CHURCHILL, P. F
Published in Applied and environmental microbiology (01.02.1999)

by Harper J.P, Ballou S.W, Habegger L.J, Sobek A.A, Antonopoulos A.A
Year of Publication 1979

by Jackson, C.R, Harper, J.P, Willoughby, D, Roden, E.E, Churchill, P.F
Published in Applied and Environmental Microbiology (01.12.1997)

by Harper, J.P
Published in Navy Supply Corps Newsletter (01.07.2012)

by Harper, J.P, Paulson, S.L
Published in Journal of the American Mosquito Control Association (01.03.1994)

by Harper, J.P, Knight, C.V
Published in Environmental and economic considerations in energy utilization (USA) (1980)

by Gerrish, J.B., Harper, J.P., Ngoddy, P.O.
Published in Journal of agricultural engineering research (01.03.1975)

by Gerrish J.B, Harper J.P, Ngoddy P.O
Published in Journal of Agricultural Engineering Research (1975)

by Harper, J.P., Ngoddy, P.O., Gerrish, J.B.
Published in Journal of agricultural engineering research (01.12.1974)

by Ngoddy, P.O, Harper, J.P, Gerrish, J.B
Published in Journal of agricultural engineering research (1974)

by Ngoddy P.O, Harper J.P, Gerrish J.B
Published in Journal of Agricultural Engineering Research (1974)

by Harper, J.P, Ballou, S.W, Habegger, L.J, Sobek, A.A, Antonopoulos, A.A
Published in Conference proceedings : The National Biomass Program, June 5, 6, and 7, 1979, Colorado School of Mines, Golden, Colo., Sponsored by U.S. Department of Energy; Coordinated by Solar Energy Research Institute (1979)

by Harper J.P, Suter D.A, Dill C.W, Jones E.R
Published in Journal of Food Science (1978)

by Gerrish, J.B., Harper, J.P., Ngoddy, P.O.
Published in Journal of agricultural engineering research (1975)

by Harper, J.P., Ngoddy, P.O., Gerrish, J.B.
Published in Journal of agricultural engineering research (1974)

by Ngoddy, P.O., Harper, J.P., Gerrish, J.B.
Published in Journal of agricultural engineering research (1974)

by Harper, J.P. (Michigan State University, East Lansing, Michigan (USA)), Ngoddy, P.O, Gerrish, J.B
Published in Journal of Agricultural Engineering Research (UK) (1974)