APA (7th ed.) Citation

Ashton, B. G. (1969). Genes, chromosomes and evolution. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Ashton, Beryl Grace. Genes, Chromosomes and Evolution. New York: Houghton Mifflin, 1969.

MLA (9th ed.) Citation

Ashton, Beryl Grace. Genes, Chromosomes and Evolution. Houghton Mifflin, 1969.