APA (7th ed.) Citation

Smith, G. P. (1973). The variation and adaptive expression of antibodies. Harvard Univ. Pr.

Chicago Style (17th ed.) Citation

Smith, George P. The Variation and Adaptive Expression of Antibodies. Cambridge, Mass: Harvard Univ. Pr, 1973.

MLA (9th ed.) Citation

Smith, George P. The Variation and Adaptive Expression of Antibodies. Harvard Univ. Pr, 1973.