Liber amicorum Robert Houben.

MLA

Houben, Robert. Liber Amicorum Robert Houben. Kessel-Lo, 1980.

APA

Houben, R. (1980). Liber amicorum Robert Houben. Kessel-Lo.

Chicago

Houben, Robert Liber Amicorum Robert Houben. Kessel-Lo, 1980.