Gaya APA

Naunton, Jon. (1993). Think Ahead to First Certificate . London: Longman.

Gaya Chicago

Naunton, Jon. Think Ahead to First Certificate. London: Longman, 1993. Non-fiction.

Gaya MLA

Naunton, Jon. Think Ahead to First Certificate. London: Longman, 1993. Non-fiction.

Gaya Turabian

Naunton, Jon. Think Ahead to First Certificate. London: Longman, 1993. Non-fiction.