APA (7th ed.) Citation

Allen, D. W., Ryan, K., Zifreund, W., & Lux, W. (1972). Microteaching. Beltz-Studienbuch.

Chicago Style (17th ed.) Citation

Allen, Dwight W., Kevin Ryan, Walther Zifreund, and Wiltrud Lux. "Microteaching." Beltz-Studienbuch 1972.

MLA (9th ed.) Citation

Allen, Dwight W., et al. "Microteaching." Beltz-Studienbuch, 1972.

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