APA Style

Royen, P, V. (1960). Revision of the Sapotaceae of the Malaysian Area in a Wider Sense XXIII. Palaquium Blanco . : Blumea.

MLA Style

Royen, P., Van. "Revision of the Sapotaceae of the Malaysian Area in a Wider Sense XXIII. Palaquium Blanco". : Blumea, 1960. Text.