APA

Heywood V. H. (. H. 1. . e., Askell Löve 1. . e., . (1963). Symposium on biosystematics, organized by The International Organization of Biosystematists, Montreal, October 1962. Utrecht: Pub. for the International Association for Plant Taxonomy by the International Bureau for Plant Taxonomy by the International Bureau for Plant Taxonomy and Nomenclature.

Chicago

Heywood V H (Vernon Hilton) 1927 ed, Askell Löve 1916 ed, . 1963. Symposium on biosystematics, organized by The International Organization of Biosystematists, Montreal, October 1962. Utrecht: Pub. for the International Association for Plant Taxonomy by the International Bureau for Plant Taxonomy by the International Bureau for Plant Taxonomy and Nomenclature.

Harvard

Heywood V. H. (. H. 1. . e., Askell Löve 1. . e., . (1963). Symposium on biosystematics, organized by The International Organization of Biosystematists, Montreal, October 1962. Utrecht: Pub. for the International Association for Plant Taxonomy by the International Bureau for Plant Taxonomy by the International Bureau for Plant Taxonomy and Nomenclature.

MLA

Heywood V H (Vernon Hilton) 1927 ed, Askell Löve 1916 ed, . Symposium on biosystematics, organized by The International Organization of Biosystematists, Montreal, October 1962. Utrecht: Pub. for the International Association for Plant Taxonomy by the International Bureau for Plant Taxonomy by the International Bureau for Plant Taxonomy and Nomenclature. 1963.