APA引文

Philips. (1981). PTI in brief. Nertherlands: Philips' Telecommunicatie Industrie BV.

Trích dẫn kiểu Chicago

Philips. PTI in Brief. Nertherlands: Philips' Telecommunicatie Industrie BV, 1981.

MLA引文

Philips. PTI in Brief. Nertherlands: Philips' Telecommunicatie Industrie BV, 1981.

警告：这些引文格式不一定是100％准确.