APA (7th ed.) Citation

Gastil. (1993). Progress: Critical thinking about historical change. Praeger.

Chicago Style (17th ed.) Citation

Gastil. Progress: Critical Thinking About Historical Change. Westport: Praeger, 1993.

MLA (8th ed.) Citation

Gastil. Progress: Critical Thinking About Historical Change. Praeger, 1993.

Warning: These citations may not always be 100% accurate.