APA aipamena

GWYNNE PETER/ JEFFRIES, B. (1998). SPACE AND PLANETS.

Chicago Style aipamena

GWYNNE PETER/ JEFFRIES, BRIAN. SPACE AND PLANETS. 1998.

MLA aipamena

GWYNNE PETER/ JEFFRIES, BRIAN. SPACE AND PLANETS. 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.