Παραπομπή APA

Eckstut, S. (1997). Focus on grammar (Workbook): A basic course for reference and practice,Ngữ pháp Longman trình độ sơ cấp. Tp. Hồ Chí Minh: Nxb. Tp. Hồ Chí Minh.

Παραπομπή Chicago Style

Eckstut, Samuela. Focus On Grammar (Workbook): A Basic Course for Reference and Practice,Ngữ Pháp Longman Trình độ Sơ Cấp. Tp. Hồ Chí Minh: Nxb. Tp. Hồ Chí Minh, 1997.

Παραπομπή MLA

Eckstut, Samuela. Focus On Grammar (Workbook): A Basic Course for Reference and Practice,Ngữ Pháp Longman Trình độ Sơ Cấp. Tp. Hồ Chí Minh: Nxb. Tp. Hồ Chí Minh, 1997.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.