Cita APA (7a ed.)

Walton, D. W. H. (1975). Taxonomic notes on South American species of the genus Acaena L. (Rosaceae).

Cita Chicago Style (17a ed.)

Walton, D. W. H. Taxonomic Notes on South American Species of the Genus Acaena L. (Rosaceae). 1975.

Cita MLA (8a ed.)

Walton, D. W. H. Taxonomic Notes on South American Species of the Genus Acaena L. (Rosaceae). 1975.