Gaya APA
Tandberg, Einar, Hanssen. (1967).
Solar Activity .
London:
Blaisdell.
Gaya Chicago
Tandberg, Einar, Hanssen.
Solar Activity.
London:
Blaisdell,
1967.
Text.
Gaya MLA
Tandberg, Einar, Hanssen.
Solar Activity.
London:
Blaisdell,
1967.
Text.
Gaya Turabian
Tandberg, Einar, Hanssen.
Solar Activity.
London:
Blaisdell,
1967.
Print.