Gaya APA
Robert B. Sund, Bill W. Tillery, Leslie W. Trowbridge. (1970).
Elementary Science Discovery Lessons the Physical Sciences .
Boston/Toronto:
Allyn and Bacon, Inc.
Gaya Chicago
Robert B. Sund, Bill W. Tillery, Leslie W. Trowbridge.
Elementary Science Discovery Lessons the Physical Sciences.
Boston/Toronto:
Allyn and Bacon, Inc,
1970.
Text.
Gaya MLA
Robert B. Sund, Bill W. Tillery, Leslie W. Trowbridge.
Elementary Science Discovery Lessons the Physical Sciences.
Boston/Toronto:
Allyn and Bacon, Inc,
1970.
Text.
Gaya Turabian
Robert B. Sund, Bill W. Tillery, Leslie W. Trowbridge.
Elementary Science Discovery Lessons the Physical Sciences.
Boston/Toronto:
Allyn and Bacon, Inc,
1970.
Print.