APA (7th ed.) Citation

Wolters, C. (1970). The cloud of unknowing. Penguin Books.

Chicago Style (17th ed.) Citation

Wolters, Clifton. The Cloud of Unknowing. Harmondsworth [etc.]: Penguin Books, 1970.

MLA (9th ed.) Citation

Wolters, Clifton. The Cloud of Unknowing. Penguin Books, 1970.

Warning: These citations may not always be 100% accurate.