GHATAK. AJAY. PROBLEMS & SOLUTION.
Cita Chicago (17th ed.)GHATAK. AJAY. PROBLEMS & SOLUTION. NEW DELHI.
Cita MLA (9th ed.)GHATAK. AJAY. PROBLEMS & SOLUTION.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)