Não informado. (1959). Dental school newsletter. University of Puerto Rico, School of Dentistry.
Chicagoスタイル(17版)引用形式Não informado. Dental School Newsletter. San Juan: University of Puerto Rico, School of Dentistry, 1959.
MLA(8版)引用形式Não informado. Dental School Newsletter. University of Puerto Rico, School of Dentistry, 1959.
警告: この引用は必ずしも正確ではありません.