Cold legs and Pain and Skin symptoms (5 causes) Cold legs and Pain and Temperature symptoms (5 causes) Cold legs and Pain and Head symptoms (4 causes) Cold legs and Pain and Headache (4 causes) Cold legs and Pain and Musculoskeletal symptoms (4 causes) Cold legs and Pain and Sensations (4 causes)
Proper APA format for sources with three to six authors requires listing the last names of all authors the first time you cite the source as well as the publication date. ...results indicated a strong positive correlation between the two variables (Robsen, Hutchkins, Ru, & Selanis, 1989).
APA style has a series of important rules on using author names as part of the author-date system. There are additional rules for citing indirect sources, electronic sources, and sources without page numbers. Citing an Author or Authors. A Work by Two Authors: Name both authors in the signal phrase or in the parentheses each time you cite the work.