APA Style
Holtkamp, Rudolf. (1990).
Small four- Wheel tractors for the tropics and subtropics : Their role in agricultural and industrial development .
Germany:
Verlag Josef margraf Scientific books.
Chicago Style
Holtkamp, Rudolf.
Small four- Wheel tractors for the tropics and subtropics : Their role in agricultural and industrial development.
Germany:
Verlag Josef margraf Scientific books,
1990.
Texts.
MLA Style
Holtkamp, Rudolf.
Small four- Wheel tractors for the tropics and subtropics : Their role in agricultural and industrial development.
Germany:
Verlag Josef margraf Scientific books,
1990.
Texts.
Turabian Style
Holtkamp, Rudolf.
Small four- Wheel tractors for the tropics and subtropics : Their role in agricultural and industrial development.
Germany:
Verlag Josef margraf Scientific books,
1990.
Texts.