Swan, M., & Walter, C. (2001). The good grammar book: A grammar practice book for elementery to lower-intermediate students of English : with answers. Oxf: Oxf. Univ. Pr.
استشهاد بنمط شيكاغوSwan, Michaael, و Catherine Walter. The Good Grammar Book: A Grammar Practice Book for Elementery to Lower-intermediate Students of English : With Answers. Oxf: Oxf. Univ. Pr, 2001.
MLA استشهادSwan, Michaael, و Catherine Walter. The Good Grammar Book: A Grammar Practice Book for Elementery to Lower-intermediate Students of English : With Answers. Oxf: Oxf. Univ. Pr, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.