(1988). [LI 1-31, (lückenhaft)]. Lettre international.
Chicago Style (17th ed.) Citation[LI 1-31, (lückenhaft)]. Berlin: Lettre international, 1988.
MLA (8th ed.) Citation[LI 1-31, (lückenhaft)]. Lettre international, 1988.
Warning: These citations may not always be 100% accurate.