APA

(19). International series on astronomy and astrophysics. New York [u.a.]: Oxford University Pr.

Chicago

19. International series on astronomy and astrophysics. New York [u.a.]: Oxford University Pr.

Harvard

(19). International series on astronomy and astrophysics. New York [u.a.]: Oxford University Pr.

MLA

International series on astronomy and astrophysics. New York [u.a.]: Oxford University Pr. 19.