Mary Jane Ruhl

Introducing and Implementing On-Line Bibliographic Retrieval Services in a Scientific Research and Development Organization

Mary Jane Ruhl, Elizabeth J. Yeates, 1976, J. Chem. Inf. Comput. Sci..

Chemical documents and their titles: Human concept indexing vs. KWIC‐machine indexing

Mary Jane Ruhl, M. Ruhl, 1964 .