Johnson, D. E., & Johnson, J. R. (1972). Graph theory: With engineering applications. New York: Ronald Press Company.
Παραπομπή Chicago StyleJohnson, David E., and Johhny R. Johnson. Graph Theory: With Engineering Applications. New York: Ronald Press Company, 1972.
Παραπομπή MLAJohnson, David E., and Johhny R. Johnson. Graph Theory: With Engineering Applications. New York: Ronald Press Company, 1972.
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