APA (7th ed.) Citation

Gregg, S. J., & Sing, K. S. W. (1967). Adsorption, surface area, and porosity. Academic Press.

Chicago Style (17th ed.) Citation

Gregg, S. J., and K. S. W. Sing. Adsorption, Surface Area, and Porosity. London: Academic Press, 1967.

MLA (9th ed.) Citation

Gregg, S. J., and K. S. W. Sing. Adsorption, Surface Area, and Porosity. Academic Press, 1967.