Guo, F.-X. (1987). On Trigonioidaceans (Non-marine Cretaceous Bivalves) and Asian Non-marine Cretaceous System. Yunnan Science and Technology Publishing House, Kunming, 206 pp.
401574
Guo, F.-X.
1987
On Trigonioidaceans (Non-marine Cretaceous Bivalves) and Asian Non-marine Cretaceous System
Yunnan Science and Technology Publishing House, Kunming, 206 pp.
Publication
in Chinese and English; the publication date is given as "1986" on the front page, but on the second page it says "First edition July 1987; first printing July 1987"