TY  - BOOK
AU  - Penny,Royston Kenneth
AU  - Gibbings, J.C.
TI  - The experimental method : : a text for students of engineering and science / 
PY  - 1974///]
CY  - London : 
PB  - Longman, 
KW  - Physical measurements
N1  -  Includes bibliographical references
ER  -