APA (7th ed.) Citation

Heidelberger, M., & Jacobs, W. A. (1920). Syntheses in the cinchona series. Journal of the American Chemical Society, 42, 1489.

Chicago Style (17th ed.) Citation

Heidelberger, M., and W. A. Jacobs. "Syntheses in the Cinchona Series." Journal of the American Chemical Society 42 (1920): 1489.

MLA (9th ed.) Citation

Heidelberger, M., and W. A. Jacobs. "Syntheses in the Cinchona Series." Journal of the American Chemical Society, vol. 42, 1920, p. 1489.

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