Gaya APA
Ewald, William R.. (1967).
Environment for man; the next fifty years .
:
Indiana University Press.
Gaya Chicago
Ewald, William R..
Environment for man; the next fifty years.
:
Indiana University Press,
1967.
Text.
Gaya MLA
Ewald, William R..
Environment for man; the next fifty years.
:
Indiana University Press,
1967.
Text.
Gaya Turabian
Ewald, William R..
Environment for man; the next fifty years.
:
Indiana University Press,
1967.
Print.