Παραπομπή APA

(1968). Seminar on Environmental Arts and Sciences August 25-31, 1968: A summary of the proceedings. Boulder, CO: Thorne Ecological Foundation.

Παραπομπή Chicago Style

Seminar On Environmental Arts and Sciences August 25-31, 1968: A Summary of the Proceedings. Boulder, CO: Thorne Ecological Foundation, 1968.

Παραπομπή MLA

Seminar On Environmental Arts and Sciences August 25-31, 1968: A Summary of the Proceedings. Boulder, CO: Thorne Ecological Foundation, 1968.

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