APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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