APA aipamena

Lawrence, S., Collins, A., Keats, B. J., Hulten, M., & Morton, N. E. (1993). Integration of gene maps: Chromosome 21.

Chicago Style aipamena

Lawrence, S., A. Collins, B J. Keats, M. Hulten, and N E. Morton. Integration of Gene Maps: Chromosome 21. 1993.

MLA aipamena

Lawrence, S., et al. Integration of Gene Maps: Chromosome 21. 1993.