Horton, D. creator Gapasin, D.;Sheridan, K.;Ballantyne, P.;Uribe, B.;Peterson, W. text xx Wallingford C.A.B. International 1993 9999 monographic und xvi, 219p.: ills., tablee D. Horton, P. Ballantyne, W. Peterson, B. Uribe, D. Gapasin and K. Sheridan 851988601 Ahmadu Bello University Library - Zaria 180412