Cita APA (7th ed.)

Blanchard, B. S., & Lowery, E. (1969). Maintainability: Principles and practices. McGraw-Hill.

Cita Chicago (17th ed.)

Blanchard, Benjamin S., i Edward Lowery. Maintainability: Principles and Practices. New York: McGraw-Hill, 1969.

Cita MLA (9th ed.)

Blanchard, Benjamin S., i Edward Lowery. Maintainability: Principles and Practices. McGraw-Hill, 1969.