by Pivnick, H, Crawley, J.F
Published in Canadian journal of microbiology (01.08.1962)

by Crawley, J.F., Fahey, J.E.
Published in Poultry science (01.05.1955)

by Lawson, K.F, Crawley, J.F
Published in Canadian veterinary journal (01.06.1973)

by Macpherson, J.W, Villalobos, E, Crawley, J.F
Published in Canadian veterinary journal (01.07.1970)

by Lawson, K F, Walker, V C, Crawley, J F
Published in Canadian journal of comparative medicine and veterinary science (01.05.1958)

by Lawson, K.F, Crawley, J.F
Published in Canadian journal of comparative medicine (01.10.1972)