Lano, R. J. (1979). A technique for software and systems design. North-Holland Pub. Co. : sole distributors for the U.S.A. and Canada, Elsevier North-Holland Pub. Co..

Lano, R. J. A Technique for Software and Systems Design. Amsterdam ; New York: North-Holland Pub. Co. : sole distributors for the U.S.A. and Canada, Elsevier North-Holland Pub. Co., 1979.

Lano, R. J. A Technique for Software and Systems Design. North-Holland Pub. Co. : sole distributors for the U.S.A. and Canada, Elsevier North-Holland Pub. Co., 1979.