APA

kallas n. k., mahmoud y. & abd el khalek a.The Clever Dog. syria: rabie publishing house.

Chicago

kallas nimat karim, mahmoud yaser and abd el khalek adel.The Clever Dog. syria: rabie publishing house.

Harvard

kallas n. k., mahmoud y. and abd el khalek a.The Clever Dog. syria: rabie publishing house.

MLA

kallas nimat karim, mahmoud yaser and abd el khalek adel.syria: rabie publishing house. .