Cita APA (7a ed.)

Guilmartin, E., & Hynes, E. (2008). Earth matters: Junior certificate geography. Folens.

Cita Chicago Style (17a ed.)

Guilmartin, Eddie, y Edwina Hynes. Earth Matters: Junior Certificate Geography. Dublin: Folens, 2008.

Cita MLA (9a ed.)

Guilmartin, Eddie, y Edwina Hynes. Earth Matters: Junior Certificate Geography. Folens, 2008.