APA ציטוט

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

Trích dẫn kiểu Chicago

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

ציטוט MLA

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