APA (7th ed.) Citation

Coppard, A. E., Rutter, O., Sandford, C., & Fabes, G. H. A Collection of 51 letters from A. E. Coppard, with a few related items.

Chicago Style (17th ed.) Citation

Coppard, A. E., Owen Rutter, Christopher Sandford, and Gilbert Henry Fabes. A Collection of 51 Letters from A. E. Coppard, with a Few Related Items.

MLA (9th ed.) Citation

Coppard, A. E., et al. A Collection of 51 Letters from A. E. Coppard, with a Few Related Items.