APA (7th ed.) Citation

lh & Duffy. Annual editions: Psychology 2002/2003.

Chicago Style (17th ed.) Citation

lh and Duffy. Annual Editions: Psychology 2002/2003. Guilford lbMcGraw-Hill lc2002.

MLA (9th ed.) Citation

lh and Duffy. Annual Editions: Psychology 2002/2003.

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