Cita APA

Helie, R. G. 1., Wickware, G. M., & Sioh, M. (1993). Quantitative assessment of surface water at risk due to acidification in Eastern Canada. Ottawa, Can.: Minis. of Supply and Service Canada.

Citación estilo Chicago

Helie, Robert Gilles 1954-, Gregory McIntosh Wickware, y M. Sioh. Quantitative Assessment of Surface Water At Risk Due to Acidification in Eastern Canada. Ottawa, Can.: Minis. of Supply and Service Canada, 1993.

Cita MLA

Helie, Robert Gilles 1954-, Gregory McIntosh Wickware, y M. Sioh. Quantitative Assessment of Surface Water At Risk Due to Acidification in Eastern Canada. Ottawa, Can.: Minis. of Supply and Service Canada, 1993.