APA aipamena

Ball,Donald M, hoveland,carl s, & lacefield,garry d. (1991). Southern forages. PPI.

Chicago Style aipamena

Ball,Donald M, hoveland,carl s, and lacefield,garry d. Southern Forages. Georgia: PPI, 1991.

MLA aipamena

Ball,Donald M, et al. Southern Forages. PPI, 1991.