APA (7th ed.) Citation

Ogundipe P.A & Tregidgo, P. (1984). Practical English 4: A comprehensive secondary Cours(Comprising five pupils Books and a Teacher's Book) (New Edition.). Longman Group Limited.

Chicago Style (17th ed.) Citation

Ogundipe P.A and P.S Tregidgo. Practical English 4: A Comprehensive Secondary Cours(Comprising Five Pupils Books and a Teacher's Book). New Edition. England: Longman Group Limited, 1984.

MLA (9th ed.) Citation

Ogundipe P.A and P.S Tregidgo. Practical English 4: A Comprehensive Secondary Cours(Comprising Five Pupils Books and a Teacher's Book). New Edition. Longman Group Limited, 1984.