Реферат: Японский журавль

8. Smirenski, S. M. 1988. Chick relationships and brood sizes in Red-crowned (Grus japonensis) and White-naped (Grus vipio) Cranes. The Palearctic Cranes:49-53.

9. Shibaev, Y. and Glushchenko, Y. N. 1988. The state of populations of Grus japonensis (P. L. S. Muller) and Grus vipio (Pallas) of the Khanka Plain in 1986. The Palearctic Cranes:184-187

Источник: http://ru.wikipedia.org/wiki/Японский_журавль