Gaya APA

Ballinger, P, W. (1986). Merrill's Atlas of Radiographic positions and radiologic procedures (Ed. 6). St. Louis,Missouri: Mosby Company.

Gaya MLA

Ballinger, Philips, W.. "Merrill's Atlas of Radiographic positions and radiologic procedures". Ed. 6 St. Louis,Missouri: Mosby Company, 1986. Text.