APA

Withington F. G., . (1978). The environment for systems programs. Reading, Mass. [u.a.]: Addison-Wesley.

Chicago

Withington Frederic G, . 1978. The environment for systems programs. Reading, Mass. [u.a.]: Addison-Wesley.

Harvard

Withington F. G., . (1978). The environment for systems programs. Reading, Mass. [u.a.]: Addison-Wesley.

MLA

Withington Frederic G, . The environment for systems programs. Reading, Mass. [u.a.]: Addison-Wesley. 1978.