Παραπομπή APA

H D William son & S W Douglas. (1972). Principles of Veterinary Radiography. Bailliere Tandell.

Παραπομπή Chicago Style

H D William son και S W Douglas. Principles of Veterinary Radiography. Bailliere Tandell, 1972.

Παραπομπή MLA

H D William son και S W Douglas. Principles of Veterinary Radiography. Bailliere Tandell, 1972.