Can't be ordered Historical Observational Records of Comets and Meteor Showers from China, Japan and Korea Pankenier, David W
Can't be ordered Statistics, Data Mining, and Machine Learning in Astronomy - A Practical Python Guide for the Analysis of Survey Data Ivezic,
Can't be ordered Astronomical Spectroscopy: An Introduction To The Atomic And Molecular Physics Of Astronomical Spectra Tennyson, Jonathan,
Can't be ordered Our cosmic origins - from the big bang to the emergence of life and intelligence Delsemme, A.H.