A manual for writers of research papers, theses, and dissertations, 7th edition - Kate L. Turabian 2007

Academic degrees
Abbreviations
Part III. Style 20 spelling

You may use abbreviations in text and elsewhere for the common academic degrees noted in the following list. Some are initialisms (see 24.1.1), which are written in capital letters, without periods or spaces. Others contain both initials and shortened terms and therefore both capital and lowercase letters, usually without periods or spaces. If you are writing a thesis or a dissertation, however, your department or university guidelines may require that you format these degrees (and possibly also the initialisms) with internal periods, as shown in parentheses.

AB - Artium Baccalaureus (Bachelor of Arts)

AM - Artium Magister (Master of Arts)

BA - Bachelor of Arts

BD - Bachelor of Divinity

BFA - Bachelor of Fine Arts

BM - Bachelor of Music

BS - Bachelor of Science

DB - Divinitatis Baccalaureus (Bachelor of Divinity)

DD - Divinitatis Doctor (Doctor of Divinity)

DMin (D.Min.) - Doctor of Ministry

EdD - Doctor of Education

JD - Juris Doctor (Doctor of Law)

LHD - Litterarum Humaniorum Doctor (Doctor of Humanities)

LittD (Litt.D.) - Litterarum Doctor (Doctor of Letters)

LLB (LL.B.) - Legum Baccalaureus (Bachelor of Laws)

LLD (LL.D.) - Legum Doctor (Doctor of Laws)

MA - Master of Arts

MBA - Master of Business Administration

MD - Medicinae Doctor (Doctor of Medicine)

MFA - Master of Fine Arts

MS - Master of Science

PhB (Ph.B.) - Philosophiae Baccalaureus (Bachelor of Philosophy)

PhD (Ph.D.) - Philosophiae Doctor (Doctor of Philosophy)

SB - Scientiae Baccalaureus (Bachelor of Science)

SM - Scientiae Magister (Master of Science)

STB - Sacrae Theologiae Baccalaureus (Bachelor of Sacred Theology)