Gaya APA
Heppner, Frank H.. (1990).
Professor farnsworth's explanations in biology / Frank H. Heppner .
:
McGraw-Hill.
Gaya Chicago
Heppner, Frank H..
Professor farnsworth's explanations in biology / Frank H. Heppner.
:
McGraw-Hill,
1990.
Text.
Gaya MLA
Heppner, Frank H..
Professor farnsworth's explanations in biology / Frank H. Heppner.
:
McGraw-Hill,
1990.
Text.
Gaya Turabian
Heppner, Frank H..
Professor farnsworth's explanations in biology / Frank H. Heppner.
:
McGraw-Hill,
1990.
Print.