APA引文

Hadley, G. (1971). Variational Methods in Economics. ELSEVIER.

Chicago Style (17th ed.) Citation

Hadley, G. Variational Methods in Economics. ELSEVIER, 1971.

MLA引文

Hadley, G. Variational Methods in Economics. ELSEVIER, 1971.

警告：這些引文格式不一定是100％准確.