APA (7th ed.) Citation

Hellyer, R. (1999). Ordnance Survey small-scale maps : indexes, 1801-1998 / Roger Hellyer: Indexes, 1801-1998. David Archer.

Chicago Style (17th ed.) Citation

Hellyer, Roger. Ordnance Survey Small-scale Maps : Indexes, 1801-1998 / Roger Hellyer: Indexes, 1801-1998. Kerry: David Archer, 1999.

MLA (9th ed.) Citation

Hellyer, Roger. Ordnance Survey Small-scale Maps : Indexes, 1801-1998 / Roger Hellyer: Indexes, 1801-1998. David Archer, 1999.

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