Style de citation APA

Earl , B., & Wilford L . D . R. (1998). Revision for chemistry GCSE with answers. John murray publishers.

Style de citation Chicago

Earl , B., et Wilford L . D . R. Revision for Chemistry GCSE with Answers. London: John murray publishers, 1998.

Style de citation MLA

Earl , B., et Wilford L . D . R. Revision for Chemistry GCSE with Answers. John murray publishers, 1998.

Attention : ces citations peuvent ne pas être correctes à 100%.