Johnson, L. A. S. 1959: The families of cycads and the Zamiaceae of Australia. – Proc. Linn. Soc. New South Wales 81(4): 64-117

Title	The families of cycads and the Zamiaceae of Australia
Authorship	Johnson, L. A. S.
Date published	1959
Volume	81(4)
In journal	Proc. Linn. Soc. New South Wales
Pages	64-117