Cita APA (7a ed.)

Duggal, S. (2016). Surveying Vol.2 (4.). Mc Graw Hill Education.

Cita Chicago Style (17a ed.)

Duggal, S.K. Surveying Vol.2. 4. chennai: Mc Graw Hill Education, 2016.

Cita MLA (9a ed.)

Duggal, S.K. Surveying Vol.2. 4. Mc Graw Hill Education, 2016.