APA (7th ed.) Citation

Kutzelnigg, W., & Berthier, G. (1971). [Sigma] and [pi] electrons in organic compounds: [by W. Kutzelnigg, G. Del Re, and G. Berthier]. Springer-Verlag.

Chicago Style (17th ed.) Citation

Kutzelnigg, Werner, and G. Berthier. [Sigma] and [pi] Electrons in Organic Compounds: [by W. Kutzelnigg, G. Del Re, and G. Berthier]. Berlin, New York: Springer-Verlag, 1971.

MLA (9th ed.) Citation

Kutzelnigg, Werner, and G. Berthier. [Sigma] and [pi] Electrons in Organic Compounds: [by W. Kutzelnigg, G. Del Re, and G. Berthier]. Springer-Verlag, 1971.