APA Citation

SPENCER, & Parkin. (1990). Study guide to accompany Parkin's economics. Massachusetts: Addison Wesley.

Chicago Style Citation

SPENCER, and Parkin. Study Guide to Accompany Parkin's Economics. Massachusetts: Addison Wesley, 1990.

MLA Citation

SPENCER, and Parkin. Study Guide to Accompany Parkin's Economics. Massachusetts: Addison Wesley, 1990.

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