Cita APA (7th ed.)

Ashton, B. G. (1967). Genes, chromosomes and evolution. Longmans.

Cita Chicago (17th ed.)

Ashton, Beryl Grace. Genes, Chromosomes and Evolution. London,: Longmans, 1967.

Cita MLA (8th ed.)

Ashton, Beryl Grace. Genes, Chromosomes and Evolution. Longmans, 1967.