APA (7th ed.) Citation

Johansson, S., & Hofland, K. (1989). Frequency analysis of English vocabulary and grammar: Based on the LOB corpus. Clarendon Press.

Chicago Style (17th ed.) Citation

Johansson, Stig, and Knut Hofland. Frequency Analysis of English Vocabulary and Grammar: Based on the LOB Corpus. Oxford: Clarendon Press, 1989.

MLA (9th ed.) Citation

Johansson, Stig, and Knut Hofland. Frequency Analysis of English Vocabulary and Grammar: Based on the LOB Corpus. Clarendon Press, 1989.