Gaya APA

Anonim, . (1988). Lotus Freelance Plus: Getting Started Release 3.01 (Cet. 1.--). S.l.: Lotus Developmenet Corporation.

Gaya MLA

Anonim, . "Lotus Freelance Plus: Getting Started Release 3.01". Cet. 1.-- S.l.: Lotus Developmenet Corporation, 1988. Text.