APA reference list example: Work with two to seven authors. All the authors are listed by last name and first initial. McDuffie, J. R., Calis, K. A., Uwaifo, G. I., Sebring, N. G., Fallon, E. M., Hubbard, V. S., and Yanovski, J. A. The year of publication is 2002 in parentheses. The article title is Three-month tolerability of orlistat in adolescents with obesity-related comorbid conditions. The journal title is Obesity Research. The journal title is italicized and is followed by a comma. The volume is 10 and it is italicized and followed by a comma. The pages are 642-650.