Citazione Stile APA (7a Edizione)

Davis, P. H., & Heywood, V. H. (2017). Principles of Angiosperm Taxonomy. Scientific Publishers.

Citazione stile Chigago Style (17a edizione)

Davis, Peter Hadland, e Vernon Hilton Heywood. Principles of Angiosperm Taxonomy. Jodhpur: Scientific Publishers, 2017.

Citatione MLA (9a ed.)

Davis, Peter Hadland, e Vernon Hilton Heywood. Principles of Angiosperm Taxonomy. Scientific Publishers, 2017.