APA (7th ed.) Citation

Crofton, I. (1990). The Guinness encyclopedia. Guiness Publishing.

Chicago Style (17th ed.) Citation

Crofton, Ian،. The Guinness Encyclopedia. London: Guiness Publishing, 1990.

MLA (9th ed.) Citation

Crofton, Ian،. The Guinness Encyclopedia. Guiness Publishing, 1990.

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