Pollen and spores extracted from petroleum of Liaohe Oil-Field and their significance.
Foreign title:
In Chinese with English summary
Reference:
Yang,H.-Q. et al. (1981)
Pollen and spores extracted from petroleum of Liaohe Oil-Field and their significance. [ In Chinese with English summary ] Acta Botanica Sinica (Chih Wu Hsueh Pao)
Vol. 23 # 1 P. 52- 57