APA
Lehman J. W., . (1981). Operaional organic chemistry. Toronto: Allyn & Bacon.
Chicago
Lehman John W, . 1981. Operaional organic chemistry. Toronto: Allyn & Bacon.
Harvard
Lehman J. W., . (1981). Operaional organic chemistry. Toronto: Allyn & Bacon.
MLA
Lehman John W, . Operaional organic chemistry. Toronto: Allyn & Bacon. 1981.