APA (7th ed.) Citation

Roy.J. Ruffin. (1938). Principles of Microrconomics. Scott, Foresman and Company.

Chicago Style (17th ed.) Citation

Roy.J. Ruffin. Principles of Microrconomics. England: Scott, Foresman and Company, 1938.

MLA (9th ed.) Citation

Roy.J. Ruffin. Principles of Microrconomics. Scott, Foresman and Company, 1938.

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