Singh, S. P. (1976). Advanced practical physics, Vol.2 (4.).
Chicago Edition CitationSingh, S P. Advanced Practical Physics, Vol.2. 4. Pragati Prakashan, Meerut, 1976.
Cita MLASingh, S P. Advanced Practical Physics, Vol.2. 4. 1976.
Atenció: Aquestes cites poden no estar 100% correctes.