by L.E. ROBERTS, J.R. SHOEMAKER
Year of Publication 04.06.1974

by L.E. ROBERTS, J.R. SHOEMAKER
Year of Publication 27.05.1974

by Heim, W.G., Morrison, Ann C., Shoemaker, J.R.
Published in Differentiation (London) (01.06.1973)

by W.R. OVER, R.A. LONG, L.E. ROBERTS, J.R. SHOEMAKER
Year of Publication 27.11.1972