Ludwig, E. W. The Holes and John Smith.
Chicago Style (17th ed.) ZitazioaLudwig, Edward W. The Holes and John Smith.
MLA (9th ed.) ZitazioaLudwig, Edward W. The Holes and John Smith.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Ludwig, E. W. The Holes and John Smith.
Chicago Style (17th ed.) ZitazioaLudwig, Edward W. The Holes and John Smith.
MLA (9th ed.) ZitazioaLudwig, Edward W. The Holes and John Smith.