Reader's digest. (1999). The garden problem solver. Reader's digest.
Chicago Style (17th ed.) ZitazioaReader's digest. The Garden Problem Solver. Pleasantville: Reader's digest, 1999.
MLA (9th ed.) ZitazioaReader's digest. The Garden Problem Solver. Reader's digest, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.