APA-viite

Gupta, A., & Sarkar, S. (1997). System analysis, data processing and quantitative techniques. Galgotia publications.

Chicago-tyylinen lähdeviittaus

Gupta, A.K, ja S.K Sarkar. System Analysis, Data Processing and Quantitative Techniques. New delhi: Galgotia publications, 1997.

MLA-viite

Gupta, A.K, ja S.K Sarkar. System Analysis, Data Processing and Quantitative Techniques. Galgotia publications, 1997.