(1967). On the track of discovery. Progress.
Chicago Style (17th ed.) CitationOn the Track of Discovery. Moscow: Progress, 1967.
ציטוט MLAOn the Track of Discovery. Progress, 1967.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.
(1967). On the track of discovery. Progress.
Chicago Style (17th ed.) CitationOn the Track of Discovery. Moscow: Progress, 1967.
ציטוט MLAOn the Track of Discovery. Progress, 1967.