APA

Gregory K. E., Cundiff L. V., Koch R. M., United States & University of Nebraska--Lincoln. (1999). Composite breeds to use heterosis and breed differences to improve efficiency of beef production. [Washington, D.C.]: United States Department of Agriculture, Agricultural Research Service.

Chicago

Gregory K E, Cundiff L V, Koch R M, United States and University of Nebraska--Lincoln. 1999. Composite breeds to use heterosis and breed differences to improve efficiency of beef production. [Washington, D.C.]: United States Department of Agriculture, Agricultural Research Service.

Harvard

Gregory K. E., Cundiff L. V., Koch R. M., United States and University of Nebraska--Lincoln. (1999). Composite breeds to use heterosis and breed differences to improve efficiency of beef production. [Washington, D.C.]: United States Department of Agriculture, Agricultural Research Service.

MLA

Gregory K E, Cundiff L V, Koch R M, United States and University of Nebraska--Lincoln. Composite breeds to use heterosis and breed differences to improve efficiency of beef production. [Washington, D.C.]: United States Department of Agriculture, Agricultural Research Service. 1999.