APA (7th ed.) Citation

Keng, H., & Keng, R. L. (1978). Orders and families of Malayan seed plants: Synopsis of orders and families of Malayan gymnosperms, dicotyledons, and monocotyledons (Rev. ed.). Singapore University Press.

Chicago Style (17th ed.) Citation

Keng, Hsuan, and Ro-Siu Ling Keng. Orders and Families of Malayan Seed Plants: Synopsis of Orders and Families of Malayan Gymnosperms, Dicotyledons, and Monocotyledons. Rev. ed. Singapore: Singapore University Press, 1978.

MLA (9th ed.) Citation

Keng, Hsuan, and Ro-Siu Ling Keng. Orders and Families of Malayan Seed Plants: Synopsis of Orders and Families of Malayan Gymnosperms, Dicotyledons, and Monocotyledons. Rev. ed. Singapore University Press, 1978.