Nivtana akrsanavaday= An introduction to the theory of newtonian attraction
Ramsey, A. S.
Nivtana akrsanavaday= An introduction to the theory of newtonian attraction - Colombo Educational Publications Department 1972 - xi, 178
531.261 / R15
Nivtana akrsanavaday= An introduction to the theory of newtonian attraction - Colombo Educational Publications Department 1972 - xi, 178
531.261 / R15