| Auteur(s) | Wu, Y. |
| Jaar | 1960 |
| Titel | Bee Pollinators of Leguminous Plants near the Borisovka Village of the Belgorod Province. Zoological Institute of the Academy of Sciences of the USSR), V. Popov. |
| Auteur(s) | Wu, Y. |
| Jaar | 1960 |
| Titel | Bee Pollinators of Leguminous Plants near the Borisovka Village of the Belgorod Province. Zoological Institute of the Academy of Sciences of the USSR), V. Popov. |