Heady, E. O., & Dillon, J. L. Agricultural production functions (5a ed.).
Chicago Style (17th ed.) CitationHeady, Earl O., and John L. Dillon. Agricultural Production Functions. 5a ed.
MLA引文Heady, Earl O., and John L. Dillon. Agricultural Production Functions. 5a ed.
警告：這些引文格式不一定是100％准確.