APA引文

Crocker, T. D. (1971). Environmental economics. Dryden.

Chicago Style (17th ed.) Citation

Crocker, Thomas D. Environmental Economics. Hindsdale: Dryden, 1971.

MLA引文

Crocker, Thomas D. Environmental Economics. Dryden, 1971.

警告：這些引文格式不一定是100％准確.