by D.J. PLUMMER, K.N. SCHUETTPELZ, J.B. DAVIS, A. SHAH, M.D. MUIR, J.J. SCHELL, E. POUMAKIS, J.W. SINCLAIR, R.E. BRUCE, J.F. MOUNT, D.A. MITTNACHT, J.D. TRAXLER, R.J. JOHNSON, C.M. EDWARDS
Year of Publication 26.10.1981