Cita APA

MacLellan, A. V., & Harker, P. (1977). Screening children for visual defects.

Chicago Style Citation

MacLellan, A V., i P. Harker. Screening Children for Visual Defects. 1977.

Cita MLA

MacLellan, A V., i P. Harker. Screening Children for Visual Defects. 1977.

Atenció: Aquestes cites poden no estar 100% correctes.