Gaya APA
Saragih, karto Karolus. (2015).
UFO : History Sightings Crop Circle (--).
Jakarta:
Gramedia.
Gaya Chicago
Saragih, karto Karolus.
UFO : History Sightings Crop Circle.
--
Jakarta:
Gramedia,
2015.
Text.
Gaya MLA
Saragih, karto Karolus.
UFO : History Sightings Crop Circle.
--
Jakarta:
Gramedia,
2015.
Text.
Gaya Turabian
Saragih, karto Karolus.
UFO : History Sightings Crop Circle.
--
Jakarta:
Gramedia,
2015.
Print.