Raven et al., 1980. In: Fish feed technology. FAO/UNDP Training Course in Fish Feed Technology, Washington, U.S.A., 9 October -15 December 1978

Raven, P. ; Walker, G., 1980. Ingredients for fish feed manufacture in the United States 1/. In: Fish feed technology. FAO/UNDP Training Course in Fish Feed Technology, Washington, U.S.A., 9 October -15 December 1978