Cita APA (7th ed.)

(1990). Discover America package tour handbook: A basic guide for the development and marketing of pre-planned domestic packaged travel. Travel Industry Association of America.

Cita Chicago (17th ed.)

Discover America Package Tour Handbook: A Basic Guide for the Development and Marketing of Pre-planned Domestic Packaged Travel. Washington, D.C: Travel Industry Association of America, 1990.

Cita MLA (9th ed.)

Discover America Package Tour Handbook: A Basic Guide for the Development and Marketing of Pre-planned Domestic Packaged Travel. Travel Industry Association of America, 1990.