Cita APA (7a ed.)

Ashton-Jones, N. J. (2000). A guide to understanding the environment. National Integrated Protected Areas Programme, Protected Areas and Wildlife Bureau.

Cita Chicago Style (17a ed.)

Ashton-Jones, Nick J. A Guide to Understanding the Environment. Quezon City: National Integrated Protected Areas Programme, Protected Areas and Wildlife Bureau, 2000.

Cita MLA (9a ed.)

Ashton-Jones, Nick J. A Guide to Understanding the Environment. National Integrated Protected Areas Programme, Protected Areas and Wildlife Bureau, 2000.