Cita APA (7th ed.)

Rummel, D. J. (2005). Useful plants of the Philippines, vol. 1. C & E Pub., Inc.

Cita Chicago (17th ed.)

Rummel, Dietmar J. Useful Plants of the Philippines, Vol. 1. Quezon City: C & E Pub., Inc, 2005.

Cita MLA (9th ed.)

Rummel, Dietmar J. Useful Plants of the Philippines, Vol. 1. C & E Pub., Inc, 2005.