Quirk and Randolph and Greenbaum and Sidney and Svartvik, Jan. 1986. A grammar of contemporary English. Harlow: Longman.
@book{1258, address = {Harlow}, author = {Quirk and Randolph and Greenbaum and Sidney and Svartvik, Jan}, booktitle = {A grammar of contemporary English.}, key = {Quirk et al. 1986}, publisher = {Longman}, title = {A grammar of contemporary English.}, type = {Bibliographical record}, url = {https://books.google.de/books?id=YEBBAQAAIAAJ}, year = {1986} }