Showing 1 - 2 results of 2 for search 'Killeffer, David H. (David Herbert) 1895-', सवाल का समय: 0.01सेकंड परिणाम को परिष्कृत करें
  1. 1

    How did you think of that? an introduction to the scientific method द्वारा Killeffer, David H. (David Herbert), 1895-

    प्रकाशित 1969
    पुस्तक

    How did you think of that? an introduction to the scientific method
  2. 2

    The genius of industrial research द्वारा Killeffer, David H. (David Herbert) 1895-

    प्रकाशित 1948
    पुस्तक

    The genius of industrial research

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