APA Edition Citation

Ardley, N., & Shields, C. (1981). Our world of nature: A first picture encyclopedia (1st Ed.). Purcell.

Chicago Edition Citation

Ardley, Neil, and Chris Shields. Our World of Nature: A First Picture Encyclopedia. 1st Ed. Maidenhead: Purcell, 1981.

MLA Edition Citation

Ardley, Neil, and Chris Shields. Our World of Nature: A First Picture Encyclopedia. 1st Ed. Purcell, 1981.

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