APA aipamena

CULVER,Roger B. Astronomy#Roger B Culver. Barnes & Noble Books.

Chicago Style aipamena

CULVER,Roger B. Astronomy#Roger B Culver. Barnes & Noble Books.

MLA aipamena

CULVER,Roger B. Astronomy#Roger B Culver. Barnes & Noble Books.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.