Dyfyniad APA

Lockey, B. (1964). Interpretation of ordinance survey maps and goegraphical picture (7th ed.). George Philip.

Dyfyniad Arddull Chicago

Lockey, B. Interpretation of Ordinance Survey Maps and Goegraphical Picture. 7th ed. London: George Philip, 1964.

Dyfyniad MLA

Lockey, B. Interpretation of Ordinance Survey Maps and Goegraphical Picture. 7th ed. George Philip, 1964.

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