L. Campbell

Pasture Forage Quality in West Virginia

E. Rayburn, W. Bennett, Jennifer M. Williams, 2004 .

Nitrogen losses from dairy manure estimated through nitrogen mass balance and chemical markers.

P. Ndegwa, A. Hristov, Steven R. Silva, 2009, Journal of environmental quality.

Use of Shrimp Penaeus spp. to Replace Krill Euphausia spp. in a Feed Training Diet for Largemouth Bass

R. Phelps, L. Campbell, 2002 .