Searle, A. B. (1915). Clays and clay products (2nd ed.). I. Pitman.
Chicago Style aipamenaSearle, Alfred B. Clays and Clay Products. 2nd ed. London ; New York: I. Pitman, 1915.
MLA aipamenaSearle, Alfred B. Clays and Clay Products. 2nd ed. I. Pitman, 1915.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.