Gaya APA
Baitsell, George A.. (1955).
SCIENCE In Progress (9th ed.).
London:
Yale University Press.
Gaya Chicago
Baitsell, George A..
SCIENCE In Progress.
9th ed.
London:
Yale University Press,
1955.
Teks.
Gaya MLA
Baitsell, George A..
SCIENCE In Progress.
9th ed.
London:
Yale University Press,
1955.
Teks.
Gaya Turabian
Baitsell, George A..
SCIENCE In Progress.
9th ed.
London:
Yale University Press,
1955.
Teks.