APA-referens (7:e uppl.)

Malik, A., & Tuckfield,Bradford. (2019). Applied Unsupervised Learning with R: Uncover hidden relationships and patterns with k-means clustering, hierarchical clustering, and PCA (NA.). Packt>.

Chicago-referens (17:e uppl.)

Malik, Alok, och Tuckfield,Bradford. Applied Unsupervised Learning with R: Uncover Hidden Relationships and Patterns with K-means Clustering, Hierarchical Clustering, and PCA. NA. Birmingham: Packt>, 2019.

MLA-referens (9:e uppl.)

Malik, Alok, och Tuckfield,Bradford. Applied Unsupervised Learning with R: Uncover Hidden Relationships and Patterns with K-means Clustering, Hierarchical Clustering, and PCA. NA. Packt>, 2019.