APA (7th ed.) Citation

Collin, B. (1955). The riddle of a 13th century sword-belt: By Bertha Collin. The Heraldry Society.

Chicago Style (17th ed.) Citation

Collin, Bertha. The Riddle of a 13th Century Sword-belt: By Bertha Collin. East Knoyle, Wiltshire: The Heraldry Society, 1955.

MLA (8th ed.) Citation

Collin, Bertha. The Riddle of a 13th Century Sword-belt: By Bertha Collin. The Heraldry Society, 1955.

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