The presence and implication of foreign organisms in ship ballast waters discharged into the Great Lakes
By: prepared by Bio-Environmental Services Ltd. for the Water Pollution Control Directorate, Environmental Protection Service, Environment Canada
Publisher: Bio-Environmental Services
Published: 1981
Place of publication: Georgetown, Ont
Language: eng
Subjects: Water; Pollution; Ships; Waste disposal
Notes: "March 1981."

Bibliography: vol. 1, p. 88-97.