APA (7th ed.) Citation

Okawa, R. Invincible thinking: Life can be compared to the construction of a tunnel; it seems we are often obstructed by solid rock. Synergy Media.

Chicago Style (17th ed.) Citation

Okawa, Ryuho. Invincible Thinking: Life Can Be Compared to the Construction of a Tunnel; It Seems We Are Often Obstructed by Solid Rock. KL: Synergy Media.

MLA (9th ed.) Citation

Okawa, Ryuho. Invincible Thinking: Life Can Be Compared to the Construction of a Tunnel; It Seems We Are Often Obstructed by Solid Rock. Synergy Media.