APA Edition Citation

Davis, P., & Heywood, V. (1991). Principles of angiosperm taxonomy. Today & Tomorrow s printers & Publishers.

Chicago Edition Citation

Davis, P.H, and V.H Heywood. Principles of Angiosperm Taxonomy. New Delhi: Today & Tomorrow s printers & Publishers, 1991.

MLA Edition Citation

Davis, P.H, and V.H Heywood. Principles of Angiosperm Taxonomy. Today & Tomorrow s printers & Publishers, 1991.

Warning: These citations may not always be 100% accurate.