Não informado. (1971). NCSDHA dental hygienist. Northern Californis State Dental Hygienists.
Chicagoスタイル(17版)引用形式Não informado. NCSDHA Dental Hygienist. San Francisco, Calif: Northern Californis State Dental Hygienists, 1971.
MLA(8版)引用形式Não informado. NCSDHA Dental Hygienist. Northern Californis State Dental Hygienists, 1971.
警告: この引用は必ずしも正確ではありません.