Cita APA (7th ed.)

Keng, H. (1983). Orders and families of Malayan seed plants. University of Malaya Press.

Cita Chicago (17th ed.)

Keng, Hsuan. Orders and Families of Malayan Seed Plants. Kuala Lumpur: University of Malaya Press, 1983.

Cita MLA (9th ed.)

Keng, Hsuan. Orders and Families of Malayan Seed Plants. University of Malaya Press, 1983.