APA (7th ed.) Citation

Gray, B. (1991). Beginners' guide to investment. Business Books.

Chicago Style (17th ed.) Citation

Gray, Bernard. Beginners' Guide to Investment. London: Business Books, 1991.

MLA (9th ed.) Citation

Gray, Bernard. Beginners' Guide to Investment. Business Books, 1991.

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