Mackean, D. G. Introduction to genetics / [by] D. G. Mackean. - 3rd ed. - London : J. Murray, 1977. - [6], 42 p. : ill. ; 30 cm. Includes index. Bibliography: p. 41. ISBN: 0719533465 : 1.40 LCCN: 89000036 Nat. Bib. No.: GB77-18137 Subjects--Topical Terms: Genetics.