Alber, D. (2015). The Sound of English: English Pronunciation Practice. Great Britian: Amazon.
استشهاد بنمط شيكاغوAlber, Dave. The Sound of English: English Pronunciation Practice. Great Britian: Amazon, 2015.
MLA استشهادAlber, Dave. The Sound of English: English Pronunciation Practice. Great Britian: Amazon, 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.