APA

Shawish M. N., . (1989). Business correspondence. Amman: DAR AL FIKR.

Chicago

Shawish Mustafa N, . 1989. Business correspondence. Amman: DAR AL FIKR.

Harvard

Shawish M. N., . (1989). Business correspondence. Amman: DAR AL FIKR.

MLA

Shawish Mustafa N, . Business correspondence. Amman: DAR AL FIKR. 1989.