To cite ggtreeDendro in publications use:

  Guangchuang Yu. (2022). Data Integration, Manipulation and
  Visualization of Phylogenetic Trees (1st edition). Chapman and
  Hall/CRC. doi:10.1201/9781003279242

A BibTeX entry for LaTeX users is

  @Book{,
    title = {Data Integration, Manipulation and Visualization of Phylogenetic Treess},
    author = {Guangchuang Yu},
    publisher = {Chapman and Hall/{CRC}},
    year = {2022},
    edition = {1st edition},
    doi = {10.1201/9781003279242},
    url = {https://www.amazon.com/Integration-Manipulation-Visualization-Phylogenetic-Computational-ebook/dp/B0B5NLZR1Z/},
  }