APA (7th ed.) Citation

ScienceDirect (Online service), Rao, K. N., & Mathews, C. W. (1972). Molecular spectroscopy: Modern research. Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), K. Narahari Rao, and C. Weldon Mathews. Molecular Spectroscopy: Modern Research. New York: Academic Press, 1972.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Molecular Spectroscopy: Modern Research. Academic Press, 1972.