APA Style
ZEHLER, E, KREIPE, H. (1981).
IPI RESEARCH TROPICS NO.9 .
SWITZERLAND:
INTERNATIONAL POTASH INSTITUTE.
Chicago Style
ZEHLER, E, KREIPE, H.
IPI RESEARCH TROPICS NO.9.
SWITZERLAND:
INTERNATIONAL POTASH INSTITUTE,
1981.
Text.
MLA Style
ZEHLER, E, KREIPE, H.
IPI RESEARCH TROPICS NO.9.
SWITZERLAND:
INTERNATIONAL POTASH INSTITUTE,
1981.
Text.
Turabian Style
ZEHLER, E, KREIPE, H.
IPI RESEARCH TROPICS NO.9.
SWITZERLAND:
INTERNATIONAL POTASH INSTITUTE,
1981.
Print.