Cita APA (7a ed.)

Halligan, J. (2021). Let's discover: Geography ... class (First edition February 2021.). CJ Fallon.

Cita Chicago Style (17a ed.)

Halligan, Jim. Let's Discover: Geography ... Class. First edition February 2021. Dublin: CJ Fallon, 2021.

Cita MLA (9a ed.)

Halligan, Jim. Let's Discover: Geography ... Class. First edition February 2021. CJ Fallon, 2021.