APA aipamena

Philippine Social Institute & Federation of Free Workers (Philippines). (1990). Philippine Social Institute: The educational arm of the Federation of Free Workers. Philippine Social Institute, Federation of Free Workers.

Chicago Style aipamena

Philippine Social Institute and Federation of Free Workers (Philippines). Philippine Social Institute: The Educational Arm of the Federation of Free Workers. Manila: Philippine Social Institute, Federation of Free Workers, 1990.

MLA aipamena

Philippine Social Institute and Federation of Free Workers (Philippines). Philippine Social Institute: The Educational Arm of the Federation of Free Workers. Philippine Social Institute, Federation of Free Workers, 1990.