APA (7th ed.) Citation

Greenwood, N. N. (1968). Principles of atomic orbitals (Rev. ed.). Royal Institute of Chemistry.

Chicago Style (17th ed.) Citation

Greenwood, N. N. Principles of Atomic Orbitals. Rev. ed. London: Royal Institute of Chemistry, 1968.

MLA (9th ed.) Citation

Greenwood, N. N. Principles of Atomic Orbitals. Rev. ed. Royal Institute of Chemistry, 1968.