Harrison, David Ph. D. Problems in genetics with notes and examples. - London Reading, Mass. Addison-Wesley [1970] - vii, 111 p. illus. 24 cm. LCCN: 71119466 //r872 Nat. Bib. No.: B*** Subjects--Topical Terms: Genetics--Problems, exercises, etc. LC Class. No.: QH431 / .H2947 Dewey Class. No.: 575.1/076