Παραπομπή APA

Pearson, N. (1971). National and provincial parks policies of Canada, 1970. Guelph: The Centre for Resources Development.

Παραπομπή Chicago Style

Pearson, Norman. National and Provincial Parks Policies of Canada, 1970. Guelph: The Centre for Resources Development, 1971.

Παραπομπή MLA

Pearson, Norman. National and Provincial Parks Policies of Canada, 1970. Guelph: The Centre for Resources Development, 1971.

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