APA (7th ed.) Citation

Walker, G. K. (1976). A comparative evaluation of two secondary services-chemical abstracts and metals abstracts - for the field of metallurgy. [S.n.

Chicago Style (17th ed.) Citation

Walker, G. K. A Comparative Evaluation of Two Secondary Services-chemical Abstracts and Metals Abstracts - for the Field of Metallurgy. S.l]: [S.n, 1976.

MLA (9th ed.) Citation

Walker, G. K. A Comparative Evaluation of Two Secondary Services-chemical Abstracts and Metals Abstracts - for the Field of Metallurgy. [S.n, 1976.