| Additional Metadata | |
|---|---|
| Natura | |
| CC BY 3.0 NL ("Naamsvermelding") | |
| Organisation | Natuurvereniging KNNV |
|
Th. Weevers. (1942). Photoperiodiciteit. Natura, 41(7), 47–50. |
|
| Additional Metadata | |
|---|---|
| Natura | |
| CC BY 3.0 NL ("Naamsvermelding") | |
| Organisation | Natuurvereniging KNNV |
|
Th. Weevers. (1942). Photoperiodiciteit. Natura, 41(7), 47–50. |
|