Shearer, A. (1987). A Challenge to Dr. Watt.
Chicago Style aipamenaShearer, A.F. A Challenge to Dr. Watt. 1987.
MLA aipamenaShearer, A.F. A Challenge to Dr. Watt. 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Shearer, A. (1987). A Challenge to Dr. Watt.
Chicago Style aipamenaShearer, A.F. A Challenge to Dr. Watt. 1987.
MLA aipamenaShearer, A.F. A Challenge to Dr. Watt. 1987.