Brieger, N. (1990). Social Contacts: Materials for developing listening ans speaking skills in business and social contexts. New York: Phoenix ELT.
استشهاد بنمط شيكاغوBrieger, Nick. Social Contacts: Materials for Developing Listening Ans Speaking Skills in Business and Social Contexts. New York: Phoenix ELT, 1990.
MLA استشهادBrieger, Nick. Social Contacts: Materials for Developing Listening Ans Speaking Skills in Business and Social Contexts. New York: Phoenix ELT, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.