APA (7th ed.) Citation

Foster, R. (1949). The complete guide to Middle-earth: From the hobbit to the silmarillion. Unwin Paperbacks.

Chicago Style (17th ed.) Citation

Foster, Robert. The Complete Guide to Middle-earth: From the Hobbit to the Silmarillion. London [etc.]: Unwin Paperbacks, 1949.

MLA (9th ed.) Citation

Foster, Robert. The Complete Guide to Middle-earth: From the Hobbit to the Silmarillion. Unwin Paperbacks, 1949.

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