Schneider, M. G., Weingart, S. W., & Perlman, D. M. (1982). An introduction to programming and problem solving with pascal. - 2nd ed. , (2nd ed. ,.). John wiley & sons.

Schneider, Michael G., Steven W. Weingart, and David M. Perlman. An Introduction to Programming and Problem Solving with Pascal. - 2nd Ed. ,. 2nd ed. ,. Singapore: John wiley & sons, 1982.

Schneider, Michael G., et al. An Introduction to Programming and Problem Solving with Pascal. - 2nd Ed. ,. 2nd ed. ,. John wiley & sons, 1982.