APA ציטוט

Evenson, R. Cycles in research productivity and international diffusion in sugarcane, wheat and rice. s.n.

Chicago Style (17th ed.) Citation

Evenson, Robert. Cycles in Research Productivity and International Diffusion in Sugarcane, Wheat and Rice. [S.l: s.n.

ציטוט MLA

Evenson, Robert. Cycles in Research Productivity and International Diffusion in Sugarcane, Wheat and Rice. s.n.