APA citiranje

Kirshner, R. P. (1999). Supernovae, an accelerating universe and the cosmological constant. Proc Natl Acad Sci U S A.

Citação norma Chicago

Kirshner, Robert P. "Supernovae, an Accelerating Universe and the Cosmological Constant." Proc Natl Acad Sci U S A 1999.

MLA citiranje

Kirshner, Robert P. "Supernovae, an Accelerating Universe and the Cosmological Constant." Proc Natl Acad Sci U S A 1999.