APA-viite (7. p.)

De Leon, H. S. (1984). The law on sales, agency, and credit transactions (1984 ed.). Rex Book Store.

Chicago-viite (17. p.)

De Leon, Hector S. The Law on Sales, Agency, and Credit Transactions. 1984 ed. Manila: Rex Book Store, 1984.

MLA-viite (9. p.)

De Leon, Hector S. The Law on Sales, Agency, and Credit Transactions. 1984 ed. Rex Book Store, 1984.