APA (7th ed.) Citation

Richards, H. M. How to plan your market / Helga Mary Richards.

Chicago Style (17th ed.) Citation

Richards, Helga Mary. How to Plan Your Market / Helga Mary Richards. London : Longmans, Green, 1957.

MLA (8th ed.) Citation

Richards, Helga Mary. How to Plan Your Market / Helga Mary Richards.

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