Canada. Fisheries and Environment Canada. (1978). Directory of Canadian environmental experts. Environment Canada.
Cita Chicago (17th ed.)Canada. Fisheries and Environment Canada. Directory of Canadian Environmental Experts. Ottawa: Environment Canada, 1978.
Cita MLA (8th ed.)Canada. Fisheries and Environment Canada. Directory of Canadian Environmental Experts. Environment Canada, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.