APA (7th ed.) Citation

Valentine, N. (1994). The Compact guide to writing letters. Penguin Books.

Chicago Style (17th ed.) Citation

Valentine, Nina. The Compact Guide to Writing Letters. Victoria: Penguin Books, 1994.

MLA (9th ed.) Citation

Valentine, Nina. The Compact Guide to Writing Letters. Penguin Books, 1994.

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