Düker, Heinrich, 1898–
Nationality: Undetermined, possibly 
(Germany)
Identities and Authority Control
- pdbooks.info ID: 79852
Heinrich Düker Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
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| Psychologische untersuchungen über freie und zwangsläufige arbeit, experimentelle beiträge zur willens- und arbeitspsychologie | 1931 | Author | |  |  | | | ||