APA (7th ed.) Citation

Robson, N. K. B. (1977). Studies in the genus Hypericum L. (Guttiferae). British Museum (Natural History).

Chicago Style (17th ed.) Citation

Robson, N. K. B. Studies in the Genus Hypericum L. (Guttiferae). London: British Museum (Natural History), 1977.

MLA (9th ed.) Citation

Robson, N. K. B. Studies in the Genus Hypericum L. (Guttiferae). British Museum (Natural History), 1977.

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