The international environment :
a reference book : a selection of current declarations and agreements.

APA Citation

Canada. External Affairs and International Trade Canada. (1990). The international environment: a reference book : a selection of current declarations and agreements. [Ottawa]: External Affairs and International Trade Canada.

MLA Citation

Canada. External Affairs and International Trade Canada. The International Environment: a Reference Book : a Selection of Current Declarations And Agreements. [Ottawa]: External Affairs and International Trade Canada, 1990.

Warning: These citations may not always be complete (especially for serials).