Design patterns : elements of reusable object-oriented software

MLA

Gamma, Erich and Erich. Gamma. Design patterns : elements of reusable object-oriented software. 37th printing. Reading, Mass. : Addison-Wesley, c1995.

APA

Gamma, E. (1995). Design patterns : elements of reusable object-oriented software. 37th printing. Reading, Mass. : Addison-Wesley.

Chicago

Gamma, Erich and Erich. Gamma. Design patterns : elements of reusable object-oriented software. 37th printing. Reading, Mass. : Addison-Wesley, c1995.