APA

C. W. C. BARLOW/G. H. BRYAN, .Elements mathematical astronomy. : .

Chicago

C. W. C. BARLOW/G. H. BRYAN, .Elements mathematical astronomy. : .

Harvard

C. W. C. BARLOW/G. H. BRYAN, .Elements mathematical astronomy. : .

MLA

C. W. C. BARLOW/G. H. BRYAN, .: . .