APA

joule j. . a., smith g. f., . (1982). heterocyclic chemistry. london: english language book society, van nostrand reinhold co.

Chicago

joule j a, smith g f, . 1982. heterocyclic chemistry. london: english language book society, van nostrand reinhold co.

Harvard

joule j. . a., smith g. f., . (1982). heterocyclic chemistry. london: english language book society, van nostrand reinhold co.

MLA

joule j a, smith g f, . heterocyclic chemistry. london: english language book society, van nostrand reinhold co. 1982.