APA

Vallentin E. F., . (1921). Illustrations of the Flowering Plants and Ferns of the Falkland Islands. London: Reeve.

Chicago

Vallentin E F, . 1921. Illustrations of the Flowering Plants and Ferns of the Falkland Islands. London: Reeve.

Harvard

Vallentin E. F., . (1921). Illustrations of the Flowering Plants and Ferns of the Falkland Islands. London: Reeve.

MLA

Vallentin E F, . Illustrations of the Flowering Plants and Ferns of the Falkland Islands. London: Reeve. 1921.