APA (7th ed.) Citation

Frey, B. S. (1972). Umweltökonomie. Vandenhoeck & Ruprecht.

Chicago Style (17th ed.) Citation

Frey, Bruno S. Umweltökonomie. Göttingen: Vandenhoeck & Ruprecht, 1972.

MLA (9th ed.) Citation

Frey, Bruno S. Umweltökonomie. Vandenhoeck & Ruprecht, 1972.

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