APA (7e ed.) Bronvermelding

Birch, W. d. G. (1907). History of Scottish seals from the 11th. to the 17th century, with upwards of 200 ill. Mackay.

Chicago (17e ed.) Bronvermelding

Birch, Walter de Gray. History of Scottish Seals from the 11th. to the 17th Century, with Upwards of 200 Ill. Stirling: Mackay, 1907.

MLA (8e ed.) Bronvermelding

Birch, Walter de Gray. History of Scottish Seals from the 11th. to the 17th Century, with Upwards of 200 Ill. Mackay, 1907.