APA

Natarjan T., Shanmukha Rao E., . (1979). Practical lessons on road construction in black cotton soil areas. New Delhi: Central Road Research Institute. Road research papers no 155.

Chicago

Natarjan TK, Shanmukha Rao E, . 1979. Practical lessons on road construction in black cotton soil areas. New Delhi: Central Road Research Institute. Road research papers no 155.

Harvard

Natarjan T., Shanmukha Rao E., . (1979). Practical lessons on road construction in black cotton soil areas. New Delhi: Central Road Research Institute. Road research papers no 155.

MLA

Natarjan TK, Shanmukha Rao E, . Practical lessons on road construction in black cotton soil areas. New Delhi: Central Road Research Institute. Road research papers no 155. 1979.