Science & technology :
Singh, Ashok Kumar
Science & technology : for civil services examinations - 19th ed. - New Delhi : McGraw Hill Education (India)Private Limited, 2014. - viii, 646 p. ; 22 cm. - Tata mcgraw hill education winning edge series. .
.
Includes glossary
9780070655485
Science & technology
Civil services examination
Science and technology in india
Communication technology
500.007 9 / SIN
Science & technology : for civil services examinations - 19th ed. - New Delhi : McGraw Hill Education (India)Private Limited, 2014. - viii, 646 p. ; 22 cm. - Tata mcgraw hill education winning edge series. .
.
Includes glossary
9780070655485
Science & technology
Civil services examination
Science and technology in india
Communication technology
500.007 9 / SIN