APA Style

Barker, W, G. (1979). CRYPTANALYSUS OF AN ENCHIPERED CODE PROBLEM-WHERE AN "ADDITIVE" METODE OF ENCHIPERMENT HAS BEEN USED . California: Aegean Park Press.

MLA Style

Barker, Wayne, G.. "CRYPTANALYSUS OF AN ENCHIPERED CODE PROBLEM-WHERE AN "ADDITIVE" METODE OF ENCHIPERMENT HAS BEEN USED". California: Aegean Park Press, 1979. Text.