APA Style

GREENBAUM, R, Q, ,, S. (1974). A University Grammar of English: Workbook (1st edition). Harlow, Essex, England: Longman Group Limited.

MLA Style

GREENBAUM, RANDOLPH, QUIRK, ,, SIDNEY. "A University Grammar of English: Workbook". 1st edition Harlow, Essex, England: Longman Group Limited, 1974. BOOK.