ScienceDirect (Online service) & Bobrow, D. G. (1984). Qualitative reasoning about physical systems. North-Holland ; Sole distributors for the U.S.A. and Canada, MIT Press.
Chicago Style (17th ed.) CitationScienceDirect (Online service) and Daniel G. Bobrow. Qualitative Reasoning About Physical Systems. Amsterdam ; New York : Cambridge, MA: North-Holland ; Sole distributors for the U.S.A. and Canada, MIT Press, 1984.
MLA (9th ed.) CitationScienceDirect (Online service) and Daniel G. Bobrow. Qualitative Reasoning About Physical Systems. North-Holland ; Sole distributors for the U.S.A. and Canada, MIT Press, 1984.
Warning: These citations may not always be 100% accurate.