Gaya APA

ANDREAS/2021010161004, ., Lovelth, C. (1994). Product plus: how product+service=competitive advantega (1). New York: Mc Graw Hill.

Gaya MLA

ANDREAS/2021010161004, ., Lovelth, Christhoper. "Product plus: how product+service=competitive advantega". 1 New York: Mc Graw Hill, 1994. Text.