APA (7th ed.) Citation

Konopka, J. (1989). Directory of germplasm collections. IBPGR.

Chicago Style (17th ed.) Citation

Konopka, J. Directory of Germplasm Collections. Rome: IBPGR, 1989.

MLA (9th ed.) Citation

Konopka, J. Directory of Germplasm Collections. IBPGR, 1989.

Warning: These citations may not always be 100% accurate.