TY  - BOOK
AU  - AGRAHARI (Ravi P)
TI  - Science and technology: for civil service preliminary and main examinations
SN  - 978-93-90113-06-4
U1  - 600.076 AGRS 
PY  - 2021///
CY  - Chennai
PB  - McGraw Hill Education (India) Private Limited
KW  - Technology
ER  -