Academica Science Journal, Geographica Series. [s.n.].
Cita Chicago (17th ed.)Academica Science Journal, Geographica Series. [S.l.]: [s.n.].
Cita MLA (9th ed.)Academica Science Journal, Geographica Series. [s.n.].
Atenció: Aquestes cites poden no estar 100% correctes.