APA-ийн эшлэл(7 дахь хэвлэлт)

SAXENA R S. (1987). INFORMATION RETRIEVAL TECHNIQUES AND REFERENCE SOURCES AND TOOLS IN PURE AND APPLIED SCIENCES. Y K PUBLISHERS.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

SAXENA R S. INFORMATION RETRIEVAL TECHNIQUES AND REFERENCE SOURCES AND TOOLS IN PURE AND APPLIED SCIENCES. AGRA: Y K PUBLISHERS, 1987.

MLA -ийн эшлэл (9 дэх хэвлэлт)

SAXENA R S. INFORMATION RETRIEVAL TECHNIQUES AND REFERENCE SOURCES AND TOOLS IN PURE AND APPLIED SCIENCES. Y K PUBLISHERS, 1987.