Styl cytowania APA

Chang, R. Y. A., & Kelly, P. K. A. (1995). Step-by-step problem solving: A practical guide to ensure problems get (and stay) solved.

Styl cytowania Chicago

Chang, Richard Y; Author, i P Keith; Author Kelly. Step-by-step Problem Solving: A Practical Guide to Ensure Problems Get (and Stay) Solved. London, Kogan Page Limited, 1995.

Styl cytowania MLA

Chang, Richard Y; Author, i P Keith; Author Kelly. Step-by-step Problem Solving: A Practical Guide to Ensure Problems Get (and Stay) Solved. 1995.