| Publication Type: | Journal Article |
| Year of Publication: | 1935 |
| Authors: | E. B. Copeland |
| Journal: | Philippine Journal of Science. ManilaPhilippine Journal of Science. Manila |
| Volume: | 56 |
| Pagination: | 471-483 |
| Short Title: | Philipp. J. Sci. |
| Publication Type: | Journal Article |
| Year of Publication: | 1935 |
| Authors: | E. B. Copeland |
| Journal: | Philippine Journal of Science. ManilaPhilippine Journal of Science. Manila |
| Volume: | 56 |
| Pagination: | 471-483 |
| Short Title: | Philipp. J. Sci. |