APA引文

Không rõ. (2001). Job Descriptions, Specifications, andStandards. Youth PublishingHouse.

Trích dẫn kiểu Chicago

Không rõ. Job Descriptions, Specifications, AndStandards. Youth PublishingHouse, 2001.

MLA引文

Không rõ. Job Descriptions, Specifications, AndStandards. Youth PublishingHouse, 2001.

警告：這些引文格式不一定是100％准確.