Cita APA (7a ed.)

Boulton, A. (2021). Copywriting Is.: 30-or-so thoughts on thinking like a copywriter (First published in 2021.). Gasp Four LTD.

Cita Chicago Style (17a ed.)

Boulton, Andrew. Copywriting Is.: 30-or-so Thoughts on Thinking like a Copywriter. First published in 2021. [Wokingham, Berkshire, England]: Gasp Four LTD, 2021.

Cita MLA (9a ed.)

Boulton, Andrew. Copywriting Is.: 30-or-so Thoughts on Thinking like a Copywriter. First published in 2021. Gasp Four LTD, 2021.