APA (7th ed.) Citation

Longman & Longman. (1994). Look ahead: Classroom course. Longman ELT.

Chicago Style (17th ed.) Citation

Longman and Longman. Look Ahead: Classroom Course. England: Longman ELT, 1994.

MLA (8th ed.) Citation

Longman and Longman. Look Ahead: Classroom Course. Longman ELT, 1994.

Warning: These citations may not always be 100% accurate.