APA aipamena

De Souto, M. S. (1985). Group travel operations manual. Delamr Pub.

Chicago Style aipamena

De Souto, Martha Sarbey. Group Travel Operations Manual. Albany, N.Y: Delamr Pub, 1985.

MLA aipamena

De Souto, Martha Sarbey. Group Travel Operations Manual. Delamr Pub, 1985.

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