Board, Biotol Biotechnological innovations in animal productivity. - 1st ed - Oxford ; Boston : Butterworth-Heinemann, 1992. - 210 p. : ill. ; 25 cm. - BIOTOL, Biotechnology by Open Learning . - Biotechnology by Open Learning (Series) . ISBN: 0750615117 9780750615112 LCCN: 92146378 Subjects--Topical Terms: Animal biotechnology--Programmed instruction. LC Class. No.: SF140.B54 / B55 1992 Dewey Class. No.: 591