Cita APA (7a ed.)

Hamburger, M. (1991). Roots in the air. Anvil Press Poetry.

Cita Chicago Style (17a ed.)

Hamburger, Michael. Roots in the Air. Londres: Anvil Press Poetry, 1991.

Cita MLA (9a ed.)

Hamburger, Michael. Roots in the Air. Anvil Press Poetry, 1991.