1. ANON. 1971–1979. Export and import data. European Trout Federation Office, Treviso, Italy.
2. ANON. 1974. Customs data. GTGREF, Technical Center for Rural Engineering of Waters and Forests, Div. of Coastal Management and Aquaculture, Bordeaux, Rep. 4 (Sept.) 53. (French)
3. BUSS, K. and MILLER, E.R. 1971. Considerations for conventional trout hatchery design and construction in Pennsylvania. U.S. Dep. Inter., Fish Wildl. Serv., Washington, D.C. Prog. Fish. Cult. 33 (2) 86–94.
4. CANCELLIERI, S.C. 1981. Personal communication. European Federation of Salmonoid Breeders, Via Indipendenza 5, 31100, Treviso, Italy.
5. DESPLANQUES, L., GAILLARD, P. and Ligier, Y. 1972. Marketing of trout. Fr. Fish Culture 31 (3rd Quarter) 18, 20, 127. (French)