APA (7th ed.) Citation

Burns, R., Fergusson, R., & Scot, R. Poems, chiefly in the Scottish dialect.

Chicago Style (17th ed.) Citation

Burns, Robert, Robert Fergusson, and Robert Scot. Poems, Chiefly in the Scottish Dialect.

MLA (9th ed.) Citation

Burns, Robert, et al. Poems, Chiefly in the Scottish Dialect.