Cita APA (7a ed.)

Gane, C., & Sarson, T. (1977). Structured systems analysis: Tools & techniques (1st. ed.). Improved System Technologies.

Cita Chicago Style (17a ed.)

Gane, Chris, y Trish Sarson. Structured Systems Analysis: Tools & Techniques. 1st. ed. New York: Improved System Technologies, 1977.

Cita MLA (8a ed.)

Gane, Chris, y Trish Sarson. Structured Systems Analysis: Tools & Techniques. 1st. ed. Improved System Technologies, 1977.