APA (7th ed.) Citation

Roberts, J. D. (1961). Notes on molecular orbital calculations. W. A. Benjamin.

Chicago Style (17th ed.) Citation

Roberts, John D. Notes on Molecular Orbital Calculations. New York: W. A. Benjamin, 1961.

MLA (9th ed.) Citation

Roberts, John D. Notes on Molecular Orbital Calculations. W. A. Benjamin, 1961.