British fungus-flora. A classified text-book of mycology. By George Massee.

3

British fungus-flora. A classified text-book of mycology. By George Massee.

4

Science policy : USA/USSR / [report prepared for National Science Foundation, Directorate for Scientific, Technological and International Affairs, Division of International Programs].

2

British conchology : or, an account of the Mollusca which now inhabit the British Isles and the surrounding seas / by John Gwyn Jeffreys.

5

British conchology : or, an account of the Mollusca which now inhabit the British Isles and the surrounding seas / by John Gwyn Jeffreys.

4

Science, technology, and American diplomacy : an extended study of the interactions of science and technology with United States foreign policy / Committee on International Relations, U.S. House of Representatives.

3

Science, technology, and American diplomacy : an extended study of the interactions of science and technology with United States foreign policy / Committee on International Relations, U.S. House of Representatives.

1

British conchology : or, an account of the Mollusca which now inhabit the British Isles and the surrounding seas / by John Gwyn Jeffreys.

3

Science, technology, and American diplomacy : an extended study of the interactions of science and technology with United States foreign policy / Committee on International Relations, U.S. House of Representatives.

2

British conchology : or, an account of the Mollusca which now inhabit the British Isles and the surrounding seas / by John Gwyn Jeffreys.

2

British conchology : or, an account of the Mollusca which now inhabit the British Isles and the surrounding seas / by John Gwyn Jeffreys.

1