Cita APA (7a ed.)

Haen, H. d., Heidhues, T., Johnson, G. L., & Tangermann, S. (1985). Agriculture and international relations: Analysis and policy : essays in memory of Theodor Heidhues. Macmillan.

Cita Chicago Style (17a ed.)

Haen, Hartwig de, Theodor Heidhues, Glenn Leroy Johnson, y Stefan Tangermann. Agriculture and International Relations: Analysis and Policy : Essays in Memory of Theodor Heidhues. Basingstoke, Hants: Macmillan, 1985.

Cita MLA (9a ed.)

Haen, Hartwig de, et al. Agriculture and International Relations: Analysis and Policy : Essays in Memory of Theodor Heidhues. Macmillan, 1985.