Burton, S. M., & Cunningham, G. F. (1963). Burton's four - figure navigation tables: :for use with G H A almanac (Ed.4.). Maritime press.
Chicago Edition CitationBurton, S M., and Gilbert F. Cunningham. Burton's Four - Figure Navigation Tables: :for Use with G H A Almanac. Ed.4. London: Maritime press, 1963.
MLA Edition CitationBurton, S M., and Gilbert F. Cunningham. Burton's Four - Figure Navigation Tables: :for Use with G H A Almanac. Ed.4. Maritime press, 1963.
Warning: These citations may not always be 100% accurate.