Cita APA (7th ed.)
Chattopadhyay,B.C, & Maity,J. Ground control and improvement techniques. Peedot.
Cita Chicago (17th ed.)
Chattopadhyay,B.C, i Maity,J. Ground Control and Improvement Techniques. Howrah: Peedot.
Cita MLA (9th ed.)
Chattopadhyay,B.C, i Maity,J. Ground Control and Improvement Techniques. Peedot.
Atenció: Aquestes cites poden no estar 100% correctes.