APA (7e ed.) Bronvermelding

Brown, J. (2022). Once upon a space-time! (First edition.). Crown Books for Young Readers.

Chicago (17e ed.) Bronvermelding

Brown, Jeffrey. Once upon a Space-time! First edition. New York: Crown Books for Young Readers, 2022.

MLA (9e ed.) Bronvermelding

Brown, Jeffrey. Once upon a Space-time! First edition. Crown Books for Young Readers, 2022.