APA引文

Walters, T., & Osborne, R. Cycad classification: Concepts and recommendations.

Chicago Edition Citation

Walters, Terrence, and Roy Osborne. Cycad Classification: Concepts and Recommendations.

MLA引文

Walters, Terrence, and Roy Osborne. Cycad Classification: Concepts and Recommendations.

警告：这些引文格式不一定是100％准确.