APA引文

Asthana, S. (1991). Environment resource planning 200 6 AD.

Chicago Edition Citation

Asthana, S.P. Environment Resource Planning 200 6 AD. :, 1991.

MLA引文

Asthana, S.P. Environment Resource Planning 200 6 AD. 1991.

警告：這些引文格式不一定是100％准確.