APA (7th ed.) Citation

Soli, L., McCaig, B., & McCaig, M. (1986). Illinois parks and forests. Affordable Adventures.

Chicago Style (17th ed.) Citation

Soli, Lynn, Barb McCaig, and Margie McCaig. Illinois Parks and Forests. Wauwatosa, Wis.: Affordable Adventures, 1986.

MLA (9th ed.) Citation

Soli, Lynn, et al. Illinois Parks and Forests. Affordable Adventures, 1986.