APA Style
POPPER, Karl R.. (1977).
The Logic of Scientific Discovery (Ninth Impression).
London:
Hutchinson.
Chicago Style
POPPER, Karl R..
The Logic of Scientific Discovery.
Ninth Impression
London:
Hutchinson,
1977.
Text.
MLA Style
POPPER, Karl R..
The Logic of Scientific Discovery.
Ninth Impression
London:
Hutchinson,
1977.
Text.
Turabian Style
POPPER, Karl R..
The Logic of Scientific Discovery.
Ninth Impression
London:
Hutchinson,
1977.
Print.