Be sure to double check periods, quotes, italics, underlining, parenthesis and make sure the elements of the citation are in the correct order.

APA
Diehm, R. & Armatas, C. (2004). Surfing: An avenue for socially acceptable risk-taking. Personality & Individual Differences, 36(3), 663-677.

MLA
Diehm, Rebekah and Christine Armatas. "Surfing: An avenue for socially acceptable risk-taking." Personality & Individual Differences. 36.3 (2004): 663-677.

"Students often have trouble with citing because they hurry and do not double check their citations. Making sure you are giving credit correctly is an important part of the research process."