Cita APA (7a ed.)
Duggal, S. (2018). Building materials (4th ed.). New Age International.
Cita Chicago Style (17a ed.)
Duggal, S.K. Building Materials. 4th ed. Kolkata: New Age International, 2018.
Cita MLA (9a ed.)
Duggal, S.K. Building Materials. 4th ed. New Age International, 2018.
Precaución: Estas citas no son 100% exactas.