Abbreviations

AN Aṇguttara Nikāya
DN Dīgha Nikāya
Dhp Dhammapada
MN Majjhima Nikāya
SNSaṃyutta Nikāya

(For all of the above, see Russell Webb, An Analysis of the Pali Canon (Wheel 217/220, 1975))

VM Visuddhimagga by Bhadantācariya Buddhaghosa

Commentaries:

Dhp A Commentary (Aṭṭhakathā) on Dhp
MA Commentary (Aṭṭhakathā) on MN
SA Commentary (Aṭṭhakathā) on SN (= Sāratthapakā-sinī)

(For these see Lakshmi R. Goonesekere, Buddhist Commentarial Literature (Weel 113/114, 1967))

Translations:

Dial Dialogues of the Buddha (3 vols.) (=DN) (SBB)
KS Kindred Sayings (5 vols.) I-ī by Mrs C. A. F. Rhys Davids, īI-V by F. L. Woodward (=SN) (PTS)
PP The Path of Purification (=VM) by Ven. ñanamoli (Colombo 1956)

Miscellaneous:

BD Buddhist Dictionary by Ven. Nyanatiloka (2nd ed. by Ven. Nyanaponika, Colombo 1972)
BPE Buddhist Psychological Ethics (= Dhammasangani [Book 1 of Abhidhamma Piṭaka] transl. By Mrs Rhys Davids, PTS 1900, 1974)
BPS Buddhist Publication Society (Kandy)
EB Encyclopaedia of Buddhism Colombo 1961 (in progress)
PED Pali English Dictionary (PTS)
PTS Pali Text Society
SBB Sacred Books of the Buddhists (series continued by PTS)
WH Wheel Publications (BPS)