PRESS, F. (1974). Earth. V.H. Freeman.
Chicago Style (17th ed.) ZitazioaPRESS, Frank. Earth. San Francisco: V.H. Freeman, 1974.
MLA (9th ed.) ZitazioaPRESS, Frank. Earth. V.H. Freeman, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
PRESS, F. (1974). Earth. V.H. Freeman.
Chicago Style (17th ed.) ZitazioaPRESS, Frank. Earth. San Francisco: V.H. Freeman, 1974.
MLA (9th ed.) ZitazioaPRESS, Frank. Earth. V.H. Freeman, 1974.