Simpkins, J., & Williams, J. I. (1992). Advanced human biology / J. Simpkins, J.I. Williams ([2nd ed.].). CollinsEducational.
Chicago Style (17th ed.) CitationSimpkins, J., and J. I. Williams. Advanced Human Biology / J. Simpkins, J.I. Williams. [2nd ed.]. London: CollinsEducational, 1992.
MLA (9th ed.) CitationSimpkins, J., and J. I. Williams. Advanced Human Biology / J. Simpkins, J.I. Williams. [2nd ed.]. CollinsEducational, 1992.
Warning: These citations may not always be 100% accurate.