Cita APA (7a ed.)

Bega, R. V. (1978). Diseases of Pacific Coast conifers. US Department of agriculture.

Cita Chicago Style (17a ed.)

Bega, Robert V. Diseases of Pacific Coast Conifers. Berkeley: US Department of agriculture, 1978.

Cita MLA (8a ed.)

Bega, Robert V. Diseases of Pacific Coast Conifers. US Department of agriculture, 1978.