Cita APA (7a ed.)

Westerback, M., & Yukawa, M. (1980). Using Government Documents to Obtain Information on National Parks, Monuments and Forests.

Cita Chicago Style (17a ed.)

Westerback, Mary, y Masako Yukawa. Using Government Documents to Obtain Information on National Parks, Monuments and Forests. 1980.

Cita MLA (9a ed.)

Westerback, Mary, y Masako Yukawa. Using Government Documents to Obtain Information on National Parks, Monuments and Forests. 1980.