APA

American Petroleum Institute A., . (1981). Thiophene, 2, 3 - and 2,5 - Dihydrothiophene, and Tetrahydrothiophene. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 1981. Thiophene, 2, 3 - and 2,5 - Dihydrothiophene, and Tetrahydrothiophene. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (1981). Thiophene, 2, 3 - and 2,5 - Dihydrothiophene, and Tetrahydrothiophene. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Thiophene, 2, 3 - and 2,5 - Dihydrothiophene, and Tetrahydrothiophene. Washington: American Petroleum Institute, API. 1981.