A treatise on spherical astronomy
Ball, Robert
A treatise on spherical astronomy Robert Ball - Cambridge : At The University Press 1923. - xii, 506 p. ; 21 cm.
Spherical astronomy
Astronomy
522.7 BAL
A treatise on spherical astronomy Robert Ball - Cambridge : At The University Press 1923. - xii, 506 p. ; 21 cm.
Spherical astronomy
Astronomy
522.7 BAL