Sing, S. G. a. K. Adsorption, surface area and porocity. Academic Press.
Chicago Style aipamenaSing, S.J. Gregg and K.S.W. Adsorption, Surface Area and Porocity. Academic Press.
MLA aipamenaSing, S.J. Gregg and K.S.W. Adsorption, Surface Area and Porocity. Academic Press.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.