Cite multiple sources in one reference

Two or more works in parentheses

Arrange by order of the reference list; use a semicolon between works:

Several researchers (Alibali, Phillips, & Fischer, 2009; Siegler, 1976) . . .

Two or more works by the same author(s)

Don’t repeat name(s), earliest year first:

(Alibali, 1999, 2005)

Secondary reference

Only the secondary reference goes in the reference list:

Racial injustice is one of the ecological risk factors for child psychopathology, according to Coie et al. (as cited in Greenbert, Domitrovich, & Bumbarger, 2000).