APA
Buckingham A. D., Coulson C. A., . (1975). Theoretical chemistry. London: Butterworths.
Chicago
Buckingham A D, Coulson C A, . 1975. Theoretical chemistry. London: Butterworths.
Harvard
Buckingham A. D., Coulson C. A., . (1975). Theoretical chemistry. London: Butterworths.
MLA
Buckingham A D, Coulson C A, . Theoretical chemistry. London: Butterworths. 1975.