Cita APA (7a ed.)
Sah, R. K., & Zhao, J. (1998). Some envelope theorems for integer and discrete choice variables. International Economic Review, 39(3), 623-635.
Cita Chicago Style (17a ed.)
Sah, Raaj K., y Jingang Zhao. "Some Envelope Theorems for Integer and Discrete Choice Variables." International Economic Review 39, no. 3 (1998): 623-635.
Cita MLA (9a ed.)
Sah, Raaj K., y Jingang Zhao. "Some Envelope Theorems for Integer and Discrete Choice Variables." International Economic Review, vol. 39, no. 3, 1998, pp. 623-635.
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