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Relations between number in brood, feeding-rate and nestling period in nine species of birds in Tanganyika territory / by R.E. Moreau.
- s.n.],
- 1947.
- [S.l. :
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The quality of education : methods and purposes in the secondary curriculum / J. Bronowski ... [et al.] ; Edited by Denys Thompson, James Reeves.
- 373.19 Q14
- Frederick Muller,
- 1947.
- London :