John, Bernard. Population cytogenetics / [by] Bernard John. - London : Edward Arnold, 1976. - [4], 76 p. : ill., maps ; 22 cm. - Institute of Biology's Studies in biology ; no. 70 . - Institute of Biology's studies in biology ; no. 70. . Bibliography: p. 75-76. ISBN: 0713125969 : 0713125977 £3.00. Subjects--Topical Terms: Population genetics.Cytogenetics. Dewey Class. No.: 572.8 / JOP 1976