Dyfyniad APA

Barlow, C. W. C. (1892). Mathematical astronomy. University correspondence college.

Dyfyniad Arddull Chicago

Barlow, Crossley William Crosby. Mathematical Astronomy. London: University correspondence college, 1892.

Dyfyniad MLA

Barlow, Crossley William Crosby. Mathematical Astronomy. University correspondence college, 1892.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.