APA (7th ed.) Citation

Luck, C., & Croneberger, R. (1976). I & R = Reference.

Chicago Style (17th ed.) Citation

Luck, Carolyn, and Robert Croneberger. I & R = Reference. 1976.

MLA (9th ed.) Citation

Luck, Carolyn, and Robert Croneberger. I & R = Reference. 1976.

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