Membership card, Western Federation of Miners
MLA
of Miners, Western Federation. Membership Card, Western Federation of Miners. [The Federation], 0AD. https://collections.library.yale.edu/catalog/2001056.
APA, 6th edition
of Miners, W. F. (0 C.E.). Membership card, Western Federation of Miners [Bifolia, Certificates, Ephemera, Membership cards]. [The Federation]. https://collections.library.yale.edu/catalog/2001056.