On the theory of boolean formulas :
allowable replacements for subformulas /
E.W. Samson, L. Calabi.

APA Citation

Samson, E. W.., Calabi, L., Air Force Cambridge Research Laboratories (U.S.)., United States. Air Force. Office of Aerospace Research. (1965). On the theory of boolean formulas: allowable replacements for subformulas. L.G. Hansom Field, Bedford, Massachusetts: Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force.

MLA Citation

Samson, E. W., L. Calabi, Air Force Cambridge Research Laboratories (U.S.), and United States. Air Force. Office of Aerospace Research. On the Theory of Boolean Formulas: Allowable Replacements for Subformulas. L.G. Hansom Field, Bedford, Massachusetts: Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force, 1965.