APA

Cohen E., Cohen A., . (1983). Planning the electronic office. New York: McGraw-Hill Book Co.

Chicago

Cohen Elaine, Cohen Aaron, . 1983. Planning the electronic office. New York: McGraw-Hill Book Co.

Harvard

Cohen E., Cohen A., . (1983). Planning the electronic office. New York: McGraw-Hill Book Co.

MLA

Cohen Elaine, Cohen Aaron, . Planning the electronic office. New York: McGraw-Hill Book Co. 1983.