Davis, P. H., & Heywood, V. H. (2017). Principles of Angiosperm Taxonomy. Scientific Publishers.
Chicago Style (17. basım) AtıfDavis, Peter Hadland, ve Vernon Hilton Heywood. Principles of Angiosperm Taxonomy. Jodhpur: Scientific Publishers, 2017.
MLA (9th ed.) AtıfDavis, Peter Hadland, ve Vernon Hilton Heywood. Principles of Angiosperm Taxonomy. Scientific Publishers, 2017.
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