Cita APA (7a ed.)
(1991). Collins cobuild english guides: 1. Prepositions (1.ed.). HarperCollins Publishers Ltd.
Cita Chicago Style (17a ed.)
Collins Cobuild English Guides: 1. Prepositions. 1.ed. London: HarperCollins Publishers Ltd, 1991.
Cita MLA (9a ed.)
Collins Cobuild English Guides: 1. Prepositions. 1.ed. HarperCollins Publishers Ltd, 1991.
Precaución: Estas citas no son 100% exactas.