Παραπομπή APA

Bradshaw, M. J., & Abbott, A. J. (1978). Earth's changing surface. Hodder and stoughton.

Παραπομπή Chicago Style

Bradshaw, Michael J., και A. J. Abbott. Earth's Changing Surface. London: Hodder and stoughton, 1978.

Παραπομπή MLA

Bradshaw, Michael J., και A. J. Abbott. Earth's Changing Surface. Hodder and stoughton, 1978.