XVIth international horticultural congress.

MLA

Lecrenier, A, and P Goeseels. Xvith International Horticultural Congress. Gembloux: J. Duculot, 1963.

APA

Lecrenier, A., & Goeseels, P. (1963). XVIth international horticultural congress. Gembloux: J. Duculot.

Chicago

Lecrenier, A. ed., and P Goeseels ed. Xvith International Horticultural Congress. Gembloux: J. Duculot, 1963.