APA (7th ed.) Citation

Leenhouts, P. W. (1968). A guide to the practice of herbarium taxonomy. International Bureau for Plant Taxonomy and Nomenclature.

Chicago Style (17th ed.) Citation

Leenhouts, P. W. A Guide to the Practice of Herbarium Taxonomy. Utrecht: International Bureau for Plant Taxonomy and Nomenclature, 1968.

MLA (9th ed.) Citation

Leenhouts, P. W. A Guide to the Practice of Herbarium Taxonomy. International Bureau for Plant Taxonomy and Nomenclature, 1968.