APA引文

Sangalang, L. P. J. (1982). A product mix optimization model. Philippine Engineering Journal.

Chicago Style (17th ed.) Citation

Sangalang, Leonardo P. Jr. "A Product Mix Optimization Model." Philippine Engineering Journal 1982.

MLA引文

Sangalang, Leonardo P. Jr. "A Product Mix Optimization Model." Philippine Engineering Journal, 1982.

警告：這些引文格式不一定是100％准確.