APA
Traxler G., Byerlee D, . (1992). Crop Management Research And Extension: The Products And Their Impact On Productivity. Mexico: CIMMYT.
Chicago
Traxler G, Byerlee D, . 1992. Crop Management Research And Extension: The Products And Their Impact On Productivity. Mexico: CIMMYT.
Harvard
Traxler G., Byerlee D, . (1992). Crop Management Research And Extension: The Products And Their Impact On Productivity. Mexico: CIMMYT.
MLA
Traxler G, Byerlee D, . Crop Management Research And Extension: The Products And Their Impact On Productivity. Mexico: CIMMYT. 1992.