The flora of Iceland and the Færoes,
by C.H. Ostenfeld and Johs. Gröntved.
- Copenhagen, Levin & Munksgaard, E. Munksgaard, 1934.
- xxiv, 195 p. 2 maps (1 double) on 2 l. 21 cm.
"List of works dealing with the flora of Iceland and the Færoes": p. viii.