Gaya APA
Kramer, Stephen. (2001).
Hidden Worlds : Looking Throungh a Scientist's Microscope .
Singapura:
Houghton Mifflin Company.
Gaya Chicago
Kramer, Stephen.
Hidden Worlds : Looking Throungh a Scientist's Microscope.
Singapura:
Houghton Mifflin Company,
2001.
Text.
Gaya MLA
Kramer, Stephen.
Hidden Worlds : Looking Throungh a Scientist's Microscope.
Singapura:
Houghton Mifflin Company,
2001.
Text.
Gaya Turabian
Kramer, Stephen.
Hidden Worlds : Looking Throungh a Scientist's Microscope.
Singapura:
Houghton Mifflin Company,
2001.
Print.