diff --git a/README.Rmd b/README.Rmd
index c8868a7..2289f93 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -1,6 +1,6 @@
 ---
 output: github_document
-# bibliography: doc/ufo_refs.bib
+bibliography: doc/ufo_refs.bib
 ---
 
 # UFO Sighting
@@ -75,4 +75,4 @@ Rscript -e "rmarkdown::render('doc/ufo_report.Rmd', output_format = 'github_docu
   - broom==0.7.0
   - infer
   
-# References
\ No newline at end of file
+# References
diff --git a/README.md b/README.md
index cbac4d1..c41cdcb 100644
--- a/README.md
+++ b/README.md
@@ -92,6 +92,55 @@ root directory of this project:
     -   DescTools==0.99.38
     -   reshape2==1.4.4
     -   broom==0.7.0
-    -   infer
+    -   infer==0.5.3
 
 # References
+
+<div id="refs" class="references csl-bib-body hanging-indent">
+
+<div id="ref-docopt" class="csl-entry">
+
+de Jonge, Edwin. 2018. *Docopt: Command-Line Interface Specification
+Language*. <https://CRAN.R-project.org/package=docopt>.
+
+</div>
+
+<div id="ref-docoptpython" class="csl-entry">
+
+Keleshev, Vladimir. 2014. *Docopt: Command-Line Interface Description
+Language*. <https://github.com/docopt/docopt>.
+
+</div>
+
+<div id="ref-R" class="csl-entry">
+
+R Core Team. 2019. *R: A Language and Environment for Statistical
+Computing*. Vienna, Austria: R Foundation for Statistical Computing.
+<https://www.R-project.org/>.
+
+</div>
+
+<div id="ref-Python" class="csl-entry">
+
+Van Rossum, Guido, and Fred L. Drake. 2009. *Python 3 Reference Manual*.
+Scotts Valley, CA: CreateSpace.
+
+</div>
+
+<div id="ref-tidyverse" class="csl-entry">
+
+Wickham, Hadley. 2017. *Tidyverse: Easily Install and Load the
+’tidyverse’*. <https://CRAN.R-project.org/package=tidyverse>.
+
+</div>
+
+<div id="ref-knitr" class="csl-entry">
+
+Xie, Yihui. 2014. “Knitr: A Comprehensive Tool for Reproducible Research
+in R.” In *Implementing Reproducible Computational Research*, edited by
+Victoria Stodden, Friedrich Leisch, and Roger D. Peng. Chapman;
+Hall/CRC. <http://www.crcpress.com/product/isbn/9781466561595>.
+
+</div>
+
+</div>