Cita APA (7th ed.)

Lumsdaine, E., & Lumsdaine, M. (1995). Creative problem solving: Thinking skills for a changing world (Int'l ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Lumsdaine, Edward, i Monika Lumsdaine. Creative Problem Solving: Thinking Skills for a Changing World. Int'l ed. New York: McGraw-Hill, 1995.

Cita MLA (9th ed.)

Lumsdaine, Edward, i Monika Lumsdaine. Creative Problem Solving: Thinking Skills for a Changing World. Int'l ed. McGraw-Hill, 1995.