APA Citatie

National Productivity Board and National Productivity Association. (1986). Productivity digest (Singapore). Singapore: National Productivity Board and National Productivity Association.

Chicago Style citaat

National Productivity Board and National Productivity Association. Productivity Digest (Singapore). Singapore: National Productivity Board and National Productivity Association, 1986.

MLA citatie

National Productivity Board and National Productivity Association. Productivity Digest (Singapore). Singapore: National Productivity Board and National Productivity Association, 1986.

Let op: Deze citaties zijn niet altijd 100% accuraat.