APA (7th ed.) Citation

Campbell, R. (1986). Knowing Levels and Developmetal Stages. Karger.

Chicago Style (17th ed.) Citation

Campbell, Robert. Knowing Levels and Developmetal Stages. Karger, 1986.

MLA (8th ed.) Citation

Campbell, Robert. Knowing Levels and Developmetal Stages. Karger, 1986.

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