edited by P. J. Failes
Associated Magazines, 1987
Buku Referensi
Pusat Perpustakaan Pertanian dan Biologi
Pusat Perpustakaan Pertanian dan Biologi, 1987
Buku Referensi
London: Her Majesty's Stationary office, 1987,
Buku Referensi
McGraw-Hill, 1982
Buku Teks
McGraw-Hill, 1984
Buku Teks