Style de citation APA (7e éd.)

SEMPREVIVO PHILIP G. (1982). SYSTEMS ANALYSIS.DEFINATIONS PROCESS AND DESIGN (2ND.). SCIENCE RESEARCH.

Style de citation Chicago (17e éd.)

SEMPREVIVO PHILIP G. SYSTEMS ANALYSIS.DEFINATIONS PROCESS AND DESIGN. 2ND. I B M: SCIENCE RESEARCH, 1982.

Style de citation MLA (9e éd.)

SEMPREVIVO PHILIP G. SYSTEMS ANALYSIS.DEFINATIONS PROCESS AND DESIGN. 2ND. SCIENCE RESEARCH, 1982.