An annotated bibliography by Raymond Preiss published in 1986 focused on Language Intensity in relation to persuasion. By contrast, this new 37-item annotated bibliography takes a broader look at probability language to expand upon Preiss's collection of sources, including some earlier and some later sources. Noting that the literature on logical qualifiers or probability words is divergent in perspectives and operational definitions, the bibliography begins with a schema of terminology with example citations and selected words from the sources in the bibliography. The material in the bibliography is divided into four sections: classic theories on probability language; probability qualifiers; intensity and power issues; and quantifiers and frequency words. The books, journal articles and theses in the bibliography were published between 1941 and 1989. (RS)