APA (7th ed.) Citation

Humphries, C. J. (1976). A revision of the Macaronesian genus Argyranthemum Webb ex Schultz Bip. (Compositae-Anthemidae). British Museum (Natural History).

Chicago Style (17th ed.) Citation

Humphries, Christopher John. A Revision of the Macaronesian Genus Argyranthemum Webb Ex Schultz Bip. (Compositae-Anthemidae). London: British Museum (Natural History), 1976.

MLA (9th ed.) Citation

Humphries, Christopher John. A Revision of the Macaronesian Genus Argyranthemum Webb Ex Schultz Bip. (Compositae-Anthemidae). British Museum (Natural History), 1976.