Hawa Shahbal. Top Maths New Edition Textbook 1B. Alston.
Cita Chicago (17th ed.)Hawa Shahbal. Top Maths New Edition Textbook 1B. Alston.
Cita MLA (9th ed.)Hawa Shahbal. Top Maths New Edition Textbook 1B. Alston.
Atenció: Aquestes cites poden no estar 100% correctes.