Cita APA (7a ed.)
Heffley, D. R. (Nov72). THE QUADRATIC ASSIGNMENT PROBLEM: A NOTE. Econometrica, 40(6), 1155-1164.
Cita Chicago Style (17a ed.)
Heffley, Dennis R. "THE QUADRATIC ASSIGNMENT PROBLEM: A NOTE." Econometrica 40, no. 6 (Nov72): 1155-1164.
Cita MLA (9a ed.)
Heffley, Dennis R. "THE QUADRATIC ASSIGNMENT PROBLEM: A NOTE." Econometrica, vol. 40, no. 6, Nov72, pp. 1155-1164.
Precaución: Estas citas no son 100% exactas.