APA引文

Johansen, D. A. (1990). Plant embryology. Bishen Singh, Mahendrapal Singh.

Chicago Edition Citation

Johansen, Donald Alexander. Plant Embryology. Dehradun: Bishen Singh, Mahendrapal Singh, 1990.

MLA引文

Johansen, Donald Alexander. Plant Embryology. Bishen Singh, Mahendrapal Singh, 1990.

警告：这些引文格式不一定是100％准确.