APA (7th ed.) Citation

(1969). World ..: Series 1404 (Ed. 1-GSGS. Pr. ... by Ordnance Survey ... [19]69.). Directorate of Military Survey.

Chicago Style (17th ed.) Citation

World ..: Series 1404. Ed. 1-GSGS. Pr. ... by Ordnance Survey ... [19]69. [London]: Directorate of Military Survey, 1969.

MLA (9th ed.) Citation

World ..: Series 1404. Ed. 1-GSGS. Pr. ... by Ordnance Survey ... [19]69. Directorate of Military Survey, 1969.

Warning: These citations may not always be 100% accurate.