There was a bookstall at the plant sale I went to yesterday. With remarkable restraint I only bought one book but it's a beauty.
At last we have a field guide to mistletoes - Mistletoes of Southern Australia by David M Watson and beautifully illustrated by Robyn Hulley. Each species has it's own page and there are chapters on cultural significance, biology, ecology and management, all complemented by superb photos.
Every mistletoe in southern Australia is described (46 in all). This leaves scope for the 45 found in northern Australia in a second book (although the Flora of Australia, Volume 22 is an excellent reference in the meantime).
Add it to your shopping list.