Template:Stafleu & Cowan, 1981
- Stafleu, F.A. & Cowan, R.S. 1981. Taxonomic Literature: A Selective Guide to Botanical Publications and Collections with Dates, Commentaries and Types, Vol. 3: Lh–O. Second Edition. 980 pp. Bohn, Scheltema & Holkema, Utrecht. BHL.