APA引文

Không rõ. (2001). Product Planning and Development. Youth PublishingHouse.

Trích dẫn kiểu Chicago

Không rõ. Product Planning and Development. Youth PublishingHouse, 2001.

MLA引文

Không rõ. Product Planning and Development. Youth PublishingHouse, 2001.

警告：這些引文格式不一定是100％准確.